The new version of AGX is out, you can found more details in here.

Here are some things I found out:

• My old tasks works
• Tab index (inside the tasks) is finally working properly
• The streaming looks slow - even very slow I'm not sure if this is because of my networks problems or because of ESRI's servers but it was better with the previous version
• Better handling the outer links (having a bug while opening a site it also opens: "about:blank" empty window near it)
• More cool icons for instead of the simple pushpins

Still (really) missing

• Scale bar (on the bottom of the page, or even in task)
• Simple "Add connection" to Google Maps (servers) & Virtual Earth (servers)
• SDK for 2008 (The given one fits to 2005 only)

Here is a simple result I make using the new popup window:

Enjoy.