garygid:
For real-time display, a faster processor might be needed,
like the Due. I have been using the ColdTears Electronics
CTE32HR, CTE35, CTE40, CTE50, and CTE70 with the Due.
CTE has one shield for the Due, and another for the Mega.I have modified the UTFT, UTFT_CTE, and UTouch libraries
to support them all, and my Sketch, for the Due, supports
various touch buttons, etc.Cheers, Gary
They are supported directly by UTFT now. As is the CPLD display.
Incidentally, Coldtears would be top of the list of alternatives to Sainsmartcrap I was talking about, you can find their store only on ebay.com and the seller id is wkws20, if not wkws20, is NOT official Coldtears!! Coldtears store is here :- MWC electronics store | eBay Stores
Buy the genuine article ONCE, and it will work without problems FIRST time, take your chances with OTHER less reputable(Sainsmart) suppliers!!
I can HIGHLY recommend the TFT shields from Coldtears, they are pretty much the best. Of course you could buy a copy from Saincrap costing $13.19 OR you could buy the GENUINE item from Coldtears for $9.99?? Why so many people buy from THAT company I have no idea, they used to sell cheap crap at one point, now they just sell crap 
The number of threads on the Arduino forums relating to 'I bought this from Sainsmart and it don't work' is seriously tiresome now............ Spread the word............. buy once, buy Coldtears!
Regards,
Graham