Bluboo sells 50K Smartphones per month. They do 5" MT6582M with 1GB RAM, 4GB ROM for $68 (bulk) with 5Mp. They have a 4.5" FWVGA on MT6582 with MT6290 for LTE at $85 (bulk). They also have a 6.9mm MT6592 Octa Core at $99 (bulk) for 1280x720 with 16GB Flash and 8Mp camera.
You can contact Bluboo here (please only contact them if you're a serious potential distributor):
Shenzhen Huhua Exploit Technology Co, Ltd.
Hualing Electronic Science&Technology(HK)INT'LIMITED
Mobile: +86 18825298012
Phone: +86 755 83464737-8005