Curious how to use the new iOS 4.2 AirPlay feature to play the movies you shot on your iPhone on the bigger Apple TV screen? Unfortunately, Apple didn't include this functionality. You can still do it. Sort of. But it's a very kludgy and annoying work around. Check it out after the break!
UPDATE: As noted in the comments, the original tip below provides audio-only output with no video support. I initially thought this was a bug -- had to be a bug -- but no. Updated tip after the break!
UPDATE 2: More on AirPlay and what does and doesn't work...