New iPods after 6pm, and iPod Software 2.0
Despite possibly receiving iPods sometime this week, it appears that stores are limited from selling iPods until after 6pm on May 2nd. A significant stock of new iPods is expected to be in place by this time.
Apple retailers will be holding special retail events on May 2nd to promote the sales of the new iPods.
This page on Apple's site reports the retail events well run from 6pm-10pm on May 2nd. Some stores will feature special music guests.
Several users have noted that only the new iPods will sport iPod Software 2.0, while the old iPods can only be upgraded to iPod Software 1.3 -- which provides AAC support, but lacks several software enhancements.
Update: One reader notes that the new iPod was already on sale at his local Best Buy.