Very nice. The tab icons could use a pixel or two of padding at the lower-left so they're centered on the close button.

Looks great, especially with Dew icons!

Nice dark theme. The inverted iChat icons are a good idea, but could use a little work. The original iChat icons are slightly darker in the pointed corner, and this translates to a slightly being slightly lighter in the inverted set, making them look kind of odd. Also, they would work better with more dark styles if the insides of the bubbles were partly transparent.

I agree with mathuaer -- the tab are spaced a little wierd. Some padding needs to be added so that they will be centered on the close button. Also, the typing icon stands out a little too much... how about a copy of the offline icon with one of the typing dots pasted into the middle instead? Overall, a very good icon set though! Perfect for small-sized contact lists!

Great status icons btw :)