So...
What if my TV wants to make an adhoc connection on one channel and my internet is on another wifi channel? How do I get my wifi-only tablet to play YouTube videos or stuff off my NAS drive onto my TV? I like the XBMC implementation better - connect it to your home network. Screencasting is handy, but sometimes I want to "fling" a network-based video at my TV then carry-on doing ofter things with my tablet