XAML???

Tomáš Kouba offers an interesting take on XAML and the Avalon rendering engine
 in his post Avalon.
 I agree that there were some shots in the dark in the discussion beneath Akta X 0311 
 and certainly in the article itself. I got carried away too in my
 post XAML — XUL from Microsoft

Nigel McFarlane lays out the basic differences between Mozilla as an application platform
 and Longhorn with XAML in his excellent article 
 Longhorn and Mozilla: Birds of a Feather
 (article tip from Martin Hassman of czilla.cz).

We shouldn’t overlook what Macromedia (Flash) is doing. It is
 behind another platform, Macromedia Flex, which is designed 
 for building rich clients.