Good Voice Recorder for original U2 iPod?

[Utoo]

My friend and I are writing music, and I'd love to be able to record ideas on my iPod whenever they come to me.

All of the new recording devices appear to work only with the new 5G iPods. Does anyone know if they work with the original U2 iPod (the 4G, not the new 5G one)? If not, are any of the older ones that work with 4G any good?

Thanks!

 

[Utoo]

It's time to make the ol' Christmas List, so I'm bumping my question.