The Amazon Kindle Fire was given unofficial CM10 by XDA Senior Member twa_priv, and the Galaxy Tab was given its goods thanks to XDA Recognized Developer cdesai. In both instances, as has become typical for new builds, the ROMs have quite a bit working and quite a bit broken.
No list of things not working is provided for the Kindle Fire, but given that the change log is based almost entirely around adding features and fixing bugs, it’s safe to say that twa_priv is well on the way to fixing everything. Things not working in the Galaxy Tab port include:
Auto-Rotation animation looks weird.
Isn’t really smooth
External sd doesn’t work (isn’t mounted)
Will add more as they are discovered
The Kindle Fire version also features some additional modifications to include features from the SGT7 project. However, one should note that while they are fun to play with, neither of them is really geared yet for daily use.