I like it, and it's super quick too. A few things though:

1. Why the strange arbitrary limit on how wide and long the window can be resized?

2. Sometimes when it does its thing and adds lyrics, the iTunes playback gets interrupted for about a second. I'm guessing iClip is writing to the file while iTunes is trying to read some of it? It's weird that it only happens once in a while

3. I'm not sure of the point of the slide-open clipboard thing, when you can just copy and paste stuff right into the main window.

4. It would be nice if you had the option of not automatically writing the lyrics to the song file right away, so you could take a look to make sure they're ok before putting them into the file. I know you can just hit the X button to remove them from the file, but then the file's been written to twice, and devices like ipods and such will RE-copy the file upon next sync, since they think the file has changed, even though it actually hasn't.

5. It'd also be nice it the app could remember the setting of "Keep iClip Lyrics On Top" between launches.

I know that looks like a lot of stuff, but all in all I think it's a really handy app that does it's thing without much intervention when you're lilstening to tunes while doing something else, like working on a document or browsing the web, etc.