I'm not looking forward to Windows 7. XP has started a DRM-heavy subsystem(kernel deep) which has continued to get worse with every new version.
I also don't really care for Flash or Shockwave. Flash video is shit, which is the majority of its use.
I don't think the MPAA, RIAA, and other 'interests'(deliberately NOT in my best interests) should be collaborating with the maker of the OS I use.
I'm considering several Linux distributions. I got a year to do it. Then MS will end all support for Win2k(which it basically already has). One example: IE6 is shit, and has numerous holes(IE6 is officially unsupported, but win2k doesn't support IE7 or above).

I also continually get MSN Alerts to upgrade to MSN Live... also unsupported on Win2k.

Windows Media Player, similar story(good thing almost no one uses WMV).

Basically they support the bare OS, but jack shit for the various software suites included with it. Fuck them.
Microsoft has failed me as their loyal customer (for well over a decade). Yea, I actually paid for Windows(even though I build/assemble my own systems).