Stay away from the TPMC-8X and very far away from the TPMC-4XG.

Look in to the TPS-6X & TPMC-3x. You'll be disappointed to learn the CP2E is not compatible with the iPAD because the processor does not have a compact flash drive to expand the memory. I did hear, though, that Crestron is working on a new concept of sending the majority of the program to reside on the iPad to overcome the memory issue... I figure several months away.