In your desktop browser, YouTube allows the modern equivalent of channel surfing: browsing related videos while you watch a clip. Unfortunately, the YouTube app for iPhone doesn't match that enviable capability.
Enter Youtopia, which gives you a more complete (and entertaining) YouTube experience by letting you "channel surf" while the current video plays on.
With a tap of the screen, the app toggles between two modes: full-screen video viewing and an overlaid interface. The latter displays various options (Featured, Channels, Search, and so on) in a toolbar down the left side and a scrolling thumbnail list of … Read more