Here's a little bit more detailed about the releases:
There are 54 product images and 2 cloud images being shipped with this 12.04 LTS release, with translations available in 41 languages. The Ubuntu project's 12.04 archive currently has 39,226 binary packages in it, built from 19,179 source packages, so lots of good starting points for your imagination!
This release also the first Ubuntu Linux releases that introduces Head-Up Display which was introduced by Mark himself on his blog. For more new features in Ubuntu, please see the desktop and server articles.
Canonical also releases Kubuntu 12.04 (LTS), Edubuntu 12.04 (LTS), Xubuntu 12.04 (LTS), Mythbuntu 12.04, Lubuntu 12.04 and Ubuntu Studio 12.04 in the same time. Please note that there will be no more support from Canonical for Kubuntu 12.10, and it will be replaced by Blue Systems.
Unfortunately, the release enjoyment was a little dissappointment as their main website can't handle the traffic and has been brought offline. It appears that they are using Drupal as their content management system. Probably they will replace or tune it to be more scalable for this kind of release which will often regularly every six months.
Mark Shuttleworth have also introduced the codename for the next Ubuntu Linux, which will be Quantal Quetzal and it's scheduled in this October.