Updated 12:50 p.m. &bull; iPhone 4S Preliminary Benchmarks: ~800MHz A5, Slightly Slower GPU than iPad 2, Still Very Fast &ndash; Faster than Android competitors in most tests, but not faster than the iPad 2. &bull; iTunes 10.5 now available ahead of iOS 5 launch &ndash; It supports iOS 5 and iCloud. &bull; Roku announces $50 [...]