Hopefully soon we will see some companies releasing ICS soon on some Tegra 2 Ventana devices -- Motorola Atrix 4g is the big one to look forward to. If it is released we could see some good stuff.
Or better yet: http://d-h.st/DDn
seems to be the Mimosa X ICS package. That should include the drivers you may have to backport them or whatever voodoo magic you do, but work your magic! (It is a ventana chip)