It's hard to see which one is highlighted. They need more contrast.

Totally agree.

I also wish the tab text collapsing worked differently. Once you have over a certain number of tabs they become pretty much useless as you can't see any titles anymore. In contrast, TextMate keeps all the tab titles visible and just moves the extra tabs into a dropdown. It's not perfect, but it's more usable than what Sublime currently does.

like this? http://kodapp.com/

Yes, but kod's development is slow.