Facebook has finally given its Android app an upgrade, unveiling an updated version that promises a significant speed bump. "Facebook for Android 2.0 is twice as fast when looking at photos and opening your Timeline and noticeably quicker to launch," Facebook's Philip Fung said in a statement. The revamped amp now offers a rebuilt newsfeed, notifications, and Timeline on the Android app with optimised speed. "When you're on your phone, nothing matters more than...