CTE has released an updated driver, that fixed some of the problems we have been having.
Unfortunately the display is still mirrored, although annoying it is a minor inconvenience compared to some of the other problems i was having.
The "UTFT fonts" now display properly using the "UTFT print function" . This has been the main problem I was having. I have only done limited testing, but the results have been good. This means we can format numbers using the " PrintNnumI or the PrintNnumF " statements. It also means we can make our own fonts using the UTFT font converter, or we can do it manually, "kind of a pain". Unfortunately the fonts provided with the displays will still not work with the print statements.
The new drivers are currently available at http://coldtears.lin3.siteonlinetest.com/files/Arduino_DUE_TFT_library.zip
These drivers should work with the mega and other compatible shields, but at this point since I do not have any other shields to test it on I cannot say for sure. If anyone contest these drivers on compatible shields please let us know if they work properly.
At least it's a step in the right direction. Being able to use the standard commands is a big plus.