The next Lion seed is out for developers. OS X Lion 10.7.3 build 11D46 is a 1.2 GB combo update / 989 MB delta update file.
This build focuses on iCloud document storage, Address Book, iCal, Mail, Spotlight and Safari.
The last seed was released a week ago. Apple released 10.7.2 to the general public in October, which added iCloud support.