I'd have to say "No" immediately since PocketPCs use a totally different type of Windows OS, either Windows CE (Compact Edition) or Windows Mobile (the latest and greatest). I doubt the coder(s) of Unitrunker would consider the PocketPC platform as a viable thing to work with considering you can buy an older used laptop with a proper serial port and proper line/mic inputs for around $200 or less nowadays, and most PocketPCs still run well over $300 brand new.
Interesting question, though...