I've found a new way to play Guitar Hero. New to me anyway. It's particularly useful if you have a spare GH guitar but can't use it at that time (eg perhaps it's from a different console).
What you do is this:
1. Let someone else play the game in single player, as normal. It helps if they're reasonably competent and also helps if they're using the guitar that works.
2. As they are playing, you pick up the spare guitar.
3. Play along with the song and pretend it's you actually controlling it.
I tried this for the first time last night whilst my girlfriend was playing (she's somewhat better at it than I am).
I appreciate that it might sound a little dumb but it works much better than you'd expect. It feels like you're in control. You get the same tactile feel on the instrument, and the illusion that you're actually playing the game is strong. Obviously it doesn't pick up whether you've got the notes right but you can often feel that yourself anyway.
If nothing else it's a good way to practice some of the harder songs and it beats sitting around waiting for your go!
In other Guitar Hero news it looks like there's a DS version coming out. It has a fret board that clips to the side of the machine and also apparently a stylus shaped like a plectrum (I suspect an actual plectrum would work too!). Haven't seen a track listing before, but after playing Elite Beat Agents for slightly too long I'm confident that the DS will handle the music side of things. I'm just unsure whether the controls will work well.
I guess if they don't I could put it in demo mode and play along with the full size guitar :-)