Things like production costs for AMOLED is dropping, Super-AMOLED price premium is now down to around 20% when compared to a Super LCD screen with the same size and resolution and making them more economical.  While people want not only readability but better screen quality and brighter colors.  So who knows where the technology will be in 2-3 years and how consumer demand may shape what ultimately prevails on most devices.

Well I think it’s the opposite. In 2-3 years the AMOLED experiment at Samsung and smaller at few others will close down and all screens will remain LCD. The only reason they can make those is because they make so large profit margins on smartphones today so they don’t care to spend extra $30 or $40 per screen, but those profits are logically going away.

Samsung and LG are not the only ones in investing billions in Amoled production facilities even Taiwanese companies AUO och Chimei Innolux and Chinese Irico in the next two years.
http://cens.com/cens/html/en/news/news_inner_37613.html
This link above have a lot of information about Taiwanese and Chinese companies and the Displaysearch predictions about Amoled vs LCD.

LCD makers have tighter and tighter marginals in their incomes for their production of LCD displays.

Smaller displays will change from LCD to Amoled forthcoming 2-3 years and LCD making will be forced
to change for larger displays as for TV.

LCD can be made cheaper, more durable using plastics instead of glass also, they are working on that.

Samsung can invest billions in all kinds of things all the time because they can afford it, last year Samsung made $200 Billion in revenues, they are supposed to invest in all kinds of things. That does not mean Samsung plans to replace their LCD with AMOLED, Samsung is one of the world leaders in LCD production and technology. Big companies like Samsung are compelled to invest all kinds of big sums of money in all kinds of alternatives not just to have them as backups but also because the world is so big, each of these technologies can always be used somehow for something. AMOLEDs for example right now are helping Samsung produce upwards 50 million high-margin high-end differentiated smartphones for the market, and later those screens may have uses still. That doesn’t mean Samsung doesn’t know and believe that LCD will continue to be by far the biggest screen technology for many years, also for smartphones as soon as those are middle-margin middle-range today and the low-margin high-end of tomorrow.

Yeah but that’s not a Pixel Qi type LCD screen, which is basically as readable as E Ink outdoors, something AMOLED can by design never compete with. Reading is an important feature.

Qualcomm Mirasoldisplay as an IMOD display tech will be made especially for the e-reader market because they know that it will be difficult to compete with Liquavista and Amoleds, forthcoming years.

Amoleds will be much cheaper to massproduce when Amoleds are made of some makers.
Amoleds are made in fewer producing steps than LCD and because of that they will be cheaper some years ahead than LCDs.

Black in Amoleds have no current to the subpixels that makes Amoleds more power efficient than any LCD tech. 

Why flexible displays?
Smartphones with flexible display can have a much larger display inside a phones that you can open and use with the larger display
or you can use a flexible display thinner than 1mm in all types of gadgets.

Smartphones will be thinner and thiner because of the possibility to make Amoleds thinner than 1mm.

A Korean researcher have developed a graphene speaker that is transparent.
Together with Amoleds we will se some years ahead Amoleds together with transparent speakers so the Smartphones can be even thinner.

Samsung acqired Liquavista in January and if you search for how many billions Samsung now invest in Amoled production facilities
it is easy to understand that Samsung will invest billion even in Liquavista display making.
http://www.oled-info.com/samsungs-and-lgs-oled-investments-could-reach-17-billion-2015

Pixel Qi is cheaper to make than Amoleds only because it is an LCD tech, it can then be implemented in an existing producing facilty.

* Qualcom is still building new factories so they could be able to produce Mirasol displays. Pixel Qi is already in mass production
* Amoled displays are a lot more expensive than Pixel Qi displays
* Unlike Amoled Pixel Qi screns are not only readable in direct sunlight but also power efficient.
* Why exactly do we need flexible displays?
* You listed a lot of screen manufacturers. Do any of them have products already available to consumers? I guess by the time some of them will release their product, Pixel Qi will be a lot more advanced than it’s now. * E-ink can not show videos and their displays still have horrible lag when browsing the web or doing similar stuff and we are still waiting for e-readers with color e-ink technology to hit the market. 

Amoleds are much better in direct sunlight, this video from Youtube shows that in a comparison between a Smartphone with a LCD vs a phone with an Amoled display.
http://www.youtube.com/watch?v=tiHNQX6kHQ8
Oleds and Amoleds have fewer processing steps than color LCD displays.
http://www.ignisinnovation.com/technology/about-amoled-displays

Sure, but LCD is the overwhelming safest bet for any of these technologies to be mass manufactured and to provide full video support.

Mirasol probably can’t be mass manufactured no matter how many billions Qualcomm puts into it. AMOLED is hard to manufacture and costs 10x more than LCD to manufacture at the moment, not pointing towards this changing. And AMOLED is not readable indoors nor outdoors.

I dunno about Liquavista, Samsung may just be experimenting with lots of different stuff because they can afford it. Samsung can also just licence and start using Pixel Qi with their Super Clear LCD manufacturing process tomorrow, who knows, maybe they are already working with Pixel Qi on it..

Pixel Qi will have competition from Qualdomm Mirasol display,Pixtronix which is also made in a mems tech,
Liquavista spin-off company from Philips in Eindhoven and in january 2011 sold to Samsung,Gamma Dynamics which is a similar electrowetting tech
like Liquavista.
E-ink will also came in full color gamut.
And maybe Orthocone

So, Pixel Qi will have a lot of competeers in thin, extremt power efficient and full color gamut displays forthcoming years.

More about Mirasoldisplays:
http://www.mirasoldisplays.com/
Liquavista:
http://www.liquavista.com/default.aspx
Pixtronix:
http://www.pixtronix.com/technology/index.asp
Gamma Dynamics:
http://gammadynamics.net/technology/
Orthocone, a spin-off från Chalmers technical University in Gothenburg Sweden:
http://orthocone.com/index.php?option=com_content&view=article&id=1&Itemid=2