When is a "Facebook phone" not a Facebook phone? When it's in China. While this handset may look like an HTC Salsa at first glace, if you look a little closer you'll notice that the familiar little blue button has been replaced with one for Sina's Weibo social networking service. Lest you think this is just another KIRF, however, you can rest assured this is indeed the real deal, and a fairly big deal for HTC, considering that Weibo has around 150 million total users, and 50 million active monthly users. As for the phone itself, it's remained mostly unchanged otherwi