MasterPass, MasterCard's hugely inadequate in-app payment offering is entering an already-crowded sub-industry, which is dominated by direct carrier billing....
It may not be as glamorous as Square, nor as well-funded as Google Wallet, but the lowly direct carrier billing approach to mobile payments beats them both....
In 2011 Facebook's payment fee revenue grew by 425% from the 2010 total and in a few years it may become the social network's top revenue contributor....