To sum, Sun launched: OpenSolaris, an open source OS [1]; a free AMI for OpenSolaris; MySQL Enterprise for EC2 [2]; an OpenSocial app hosting service [3]; and a Facebook app hosting service [4].

[1] Includes ZFS and DTrace. http://en.wikipedia.org/wiki/OpenSolaris

[2] Tiered support service. Cost: $599-4999/yr

[3] On Joyent's (OpenSolaris) servers. 1st yr: free

[4] To be released soon