Bassem said:7 is nice, but what I don't enjoy about it is that it's still Vista under the hood. It has all the usual 'Vista-isms'.
* Insane 'choose-your-own-adventure' Control Panel
* UAC
* Compatibility (Retro games particularly)
* Sucky OpenGL
* Painful networking (Sharing / Printers)
Remember, this is still beta we are tinkering with. Word on the skreet is that the Release Candidate will have over 70 UI improvements, whatever they may be.
http://i.gizmodo.com/5169801/windows-7-release-candidate-changes-increase-productivity-and-workflow