As far as I know Arlex, there are none. CE6 was the last produced, And those were really no better than the CE5 machines as far as functionality.
There are zero devices I know that support capacitive touch screens in that size....or any size really.
If you read my review on the NEC Mobile Terminal that I bought...that is about the closest to what you are talking about I think.
Actually I think I would like to get my hands on a Skeyepad XSL with CE5 and give it a try...