I for one would not be upset at all if/when Facebook fails. Another thing to consider: is your data plan advantageous? I tried VOIP on android over wifi once, it was terrible... almost unusable. With ideas like this, I am amazed FB is still in business.
They're certainly proving they are NOT too big to fail. Grasping at straws lately.
Anyone can do any amount of work provided it isn't the work he is supposed to be doing at the moment. -- Robert Benchley