You can make a 1-minute short film using your smartphone camera, edit it in any editing software you want, submit the shortfilm before the 7th of January at http://fr.mobilefilmfestival.com it can be in any language but needs at least French subtitles if it's not in French, and you can win some of the 15000€ if they pick your shortfilm as one of the best.
Popwings creates business cards with built-in NFC chips, so you can put it under an NFC enabled phone, and the contact details launch on the device.
Startups can be launched using Kickstarter alternatives too. Here Apigy talks about their experience doing crowdfunding to launch the http://lockitron.com without the use of Kickstarter, for some reason Kickstarter had not allowed them onto their site, so they decided to build their own alternative to Kickstarter. And http://fundedbyme.com talks about micro-investing in startups, letting anyone buy equity in new startups on the web.
And here's the Lockitron keynote at LeWeb 2012:
Check out this awesome remote controlled sphero ball. It's now being sold for $129, but with mass manufacturing, the price can come down.
AppsFire is an apps recommendations app, it recommends you apps suited for you based on the apps you like and search for.
A tiny, automatic camera and app that gives you a searchable and shareable photographic memory. It takes a picture for 2 days with 2 minute interval, then they plan to release an app that automatically selects relevant pictures that are well lit, in focus.
Here's the story behind http://youasked.it
Microsoft is showing off Surface RT, Windows Phone 8, Windows 8, a bunch of devices running these.
Renault has partnered with South African travel tech company Tourism Radio to create in-car virtual audio guides for all their vehicles through their soon to be released R-Link embeded in car system.
Google acquired Wildfire a few months ago. Wildfire is one of the leaders in social media marketing for all the worlds big and small brands. 30 of the world's top-50 brands use wildfire for their social media marketing campaigns. For example when Coca-cola does something on Facebook, there is a good chance that they are using Wildfire's software and solutions.