We've been hearing about another Facebook phone since last November, and at that time it was codenamed “Opera UL.” Then last month, the codename “Myst” appeared. Either way, it looks like “Myst” is indeed the codename for the next Facebook phone that will be made by HTC. The specs have leaked again and they are a lot like what we heard last month, but with some minor changes and additions.
What's different is the CPU. It's still a dual-core Qualcomm Snapdragon S4 Plus, but now we are hearing it's 1.5GHz , as opposed to 1.4GHz. The display is confirmed to be 4.3-inches and 720p, but we now know it will have a ppi of 320. Other new information is the RAM, which is 1GB, 16GB of internal storage (no microSD slot), both LTE and HSPA radios, and Android 4.1.2 Jelly Bean. As to the camera, there isn't anything different than what we already heard, a 5MP rear camera and 1.6MP front camera. Obviously these specs don't scream high-end, but when you consider the target demographic, they don't need to.
As to when this bad boy will become available, the latest rumor points to the spring.
source: unwiredview
No interest to me at all, don’t even have a Facebook app on my mobile, the last thing on earth I would want is a “Facebook” phone!