This is the phone I had as my own and sold to my customers. It came out a year before iPhone among many others. It was a mature product. It was quite shitty in terms of performance, but it had all connectivity and gps stuff, and many apps to work with it all.
Windows' shitty interface could be improved by cool touch-oriented interfaces (Spb Mobile Shell being one of them), there were 3rd party keyboard apps as well. https://m.gsmarena.com/htc_p3600-1694.php