I wanted to look for something in the AIR Marketplace (which is where my application Klok lives) but could not find a link for the AIR Marketplace anywhere. I expected this to get a more prominent spot. I ended up searching for it and found it that way, but I never did find it in the navigation anywhere
It also took me a few minutes to find the links to the designer and developer community sections. They are nestled under Learning in case you are looking for them too. While there is certainly a lot to be learned there, I didn't immediately make the connection.
Perhaps the site isn't completely done yet?
Aside from the missing link, you will notice another item that has gone missing... Flash content. There is surprisingly little Flash being used on the site. Now it isn't to say that there should be a lot of Flash on the site, I'm just saying that I was surprised to see the home page with the big Acrobat X graphic on there without some cool animation or interactive content.