If you’re the owner of the HTC Aria, Liberty or Gratia handsets, there’s good news for you: Sense 2.2 has been leaked and made available by the XDA developers community. XDA user tenfar provided access to the new software, that you can get from here.
Some of these handset models (if not all) are only available in the US, so EUR users will probably have to wait for them to be released on the continent, before trying out the new HTC Sense.