Looks great Leevi. We’re just starting to roll clients to EE2, and the look and feel of the CP is one of our few worries.
You can sign us up to maintain a blue fork, we’d be doing it anyways. Quick find/replace:
http://dl.dropbox.com/u/611205/cameron/morphine2-blue.png
http://www.bluestatedigital.com/
Really like having this in a few CSS files, rather than as accessories + modules + extensions.
As to your questions:
1) Our clients only use publish and edit screens really, but those need to work in IE. Doesn’t need to be as good as CSS3 supporting browsers, but needs to work.
2) Yes, this is much improved.
3) Happy to help pay for updates. But for the EE community, having a freely available (preferably Ellis Labs blessed default) theme would go a long ways.
I’m wondering if there is an amount of money that could be raised to fund your ongoing maintenance time. Maybe Ellis Labs pays for it (easy to spend others money), or maybe the community raises it. We’ll certainly chip in to set this free.
In the long run, I think EE needs a pleasant default experience to compete, and this seems like a great step in the right direction.
~cc