Some people have connected devices to pocket PC's via USB.
Google it. You won't find an easy solution.
I have followed this route for several years.
In short. There is no current way to create an interface between
a USB device using Basic4ppc at this time.
If there was, I would be giving a different answer

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Don't ask, I'm fine, honest. !!
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Just a little crazy at times
O2 XDA, GW Evo 2.1 UC WWE Rom, WM6.1
Radio Ver 03.34.90
With Basic4ppc V6.80
http://www.taximania.co.uk