I just got the touch a couple of weeks ago and now it makes me really want an iPhone. All the really cool apps need wiFi. We were in NYC yesterday and this girl had an app that would tell us where the nearest public restroom was. I heard a rumor that the 2nd gen touches have a bluetooth feature in them that will be unlocked with a future update. That way you could connect it to your cell phone. Probably a bit far fetched, but would be awesome!
I have downloaded a bunch and the ones I like most is Maze Finger and Touch Hockey. I downloaded all sorts of fitness things but don't use them much.
I wish I could hook it up to wifi everywhere because then I would use the Sparkpeople app all the time.
I think I will be subscribing to this thread too.