According to this IDG News story Google will "gradually" begin to offer POP3 support for Gmail users. Look for it in the "coming weeks."
The article also mentions that antivirus scanning and other features are in the works.

Introducing SES Online
Want to view one of the sessions you missed or listen to an especially informative presenter a second time? SES New York sessions are available for purchase on ClickZ Academy's new e-Learning site. SES is now Online!
