Yeah I wouldn't mind trying one out for recording atmos sound. I don't think I would use it for anything else.
It's likely better than the camcorders audio. As I spy an H4 on craigslist for $100.
The Zooms Rock !!!!!
I been using a Zoom Q3 with all my video cam's for a while now,,, makes for some killer sound to go along with my HD video stuff.
Rumor has it that Zoom will be coming out with a HD cam with the same audio recording set-up as the Q3,,,,, a HD Zoom Q3 version.
Finally used the Zoom4n a lot last night. Great unit with very good sound.