[aguynamedrich]

http://techcrunch.com/2010/09/19/facebook-is-secretly-buildi...

This article is from nearly two years ago and claims that Facebook was very secretively working on its own mobile OS. If this is indeed the case, a lot of their somewhat recent acquisitions make a little more sense (GoWalla, Karma, Instagram obviously, and LightBox).

http://en.wikipedia.org/wiki/List_of_acquisitions_by_Faceboo...

The fact that their valuation gets beat down on the lack of ad revenue in the ever growing mobile space turns into a bullish signal if they release a high quality phone with a high profit margin. I wondered why they were splitting up their mobile app into many recently on Android as well, and this tells me that it's possible they want to create a suite of "necessity" apps as the basis for their platform.