What do I find irritating about Windows 7 so far?

• Too much eye-candy.  I'm  interested in performance.  I could care less about the visual appeal of the OS.  A balance of both would be ideal.
• No classic start menu.
• No system shutdown when running in a dual boot configuration.  Just restarts.  (watch for a fix on this page soon).
• When using lower screen resolutions you can no longer set the desktop icon size to 32x32 icons.  The super-sized icons are yet another example of Microsoft wasting my real-estate which is a habit they can get out of anytime now.
• As with Vista, UAC.  System security is the responsibility of the user and has nothing to do with Microsoft.  They have no business injecting arbitrary security features and particularly when they have never been very successful with system security anyway.  Yes UAC can be disabled.  Doing so also disables possibly desirable features like the desktop gadgets.  See the gadget fix below.
• The use of Internet Explorer 8.  This is one of the worst browsers MS has developed so far.  The Back button doesn't work at most times, and the "suggest" search is terrible.
  Update:  The back button issue appears to have been fixed.

The start menu and desktop icons may be deal breakers for me.  I have yet to make a firm decision on this.

What do I like about Windows 7 so far?

• The built in ISO burning capability.  I found it very fast and better than most similar products available.
• UAC has been improved over what was seen in Vista.  I still don't like it but it is improved.