AudioBoo is a cute program - I like that I can search things that other people have uploaded for soundbytes. I'm sure there's a way to make my things private, though I didn't check into that, I simply made a test byte.
After hitting the record button, I like how the dots turn colors to indicate decibels of noise - that entertained me while I was making raspberry noises. The quality of the sound when I played it back is actually quite good, so it's an app I would use again to record small bits of sound from my kids.
It's a very simple app - no frills. Something I also appreciate. I hate it when apps are so complicated you can't figure them out right away.