I just posted Touch Keyboard and Number Pad on Codeshare. Feel free to discuss and make suggestions here.
Nice. I also found that touch on the TE35 was slow and that was with a Cobra 2.
It also depends on how much foreground processing your app is doing. If I stopped the serial processing it would work but with the Zigbee serial working and processing every second it was a real slog to use the touch. I think this is due to the fact that the touch is handled by polling and not interrupts.
I have since changed to a capacitive display where the touch is handled via an interrupt input and now the response is very fast even with the Cobra 2. On the G400 it’s a very fast response time.