I have to admit that I had a bit of a bad reaction to the new names for Avalon and Indigo. It's been amusing to notice other bloggers expressing similar sentiments.
Here are a few that have caught my eye:
No more Longhorn, Avalon and Indigo (Markus Egger)
Indigo == WCF && Avalon == WPF? WTF? (Larry O'Brien)
Avalon and Indigo Renamed and WinFX Runtime/SDK (Sam Gentile)
(added August 5th) Chris Anderson, who has been one of the most visible people at Microsoft working on Avalon, seems to be less than thrilled with it's new name... What's in a Name