For months, T-Mobile UK has watch silently as Orange UK sold the new HTC touch Dual. T-Mobile has chosed to change the name of the HTC Touch Dual to the HTC touch Plus. T-Mobile UK also opted for the 12 keys keypad-type version over the 20 key Suretype layout which a few other European cell carriers have chosen to use. Other than those changes, the T-Mobile HTC Touch Plus will have a standard feature layout on Windows Mobile 6 Professional, triband GSM/GPRS/EDGE, singleband UMTS/HSDPA as well as Bluetooth 2.0+EDR.
I'd expect to see t-Mobile UK to have a release date for the HTC Touch Plus in late January sicne they are already featureing the device on their website.