Facebook phones have not done well. The HTC ChaCha that became the HTC Status QWERTY was discontinued by AT&T back in August 2011, designed for tweens it lasted only a few months on the market.
The HTC First, on the other hand lastest only a month. The mid-level Android smartphone sold-out after a 99-cent fire sale.
Th HTC First will loaded with HTC Home that takes over the OS to be more like Facebook.