If you edit
nPOPw's INI file, changing the ViewApp line to point to \Windows\iexplore.exe and the ViewFileSuffix to HTML, this will enable viewing in Pocket IE by tapping [b]File | External Viewer] within an opened email. The edit is dead-simple. So are most of the INI tweaks one may use to get nPOPw customised to your liking. Some edits are a bit tricky... read the tutorial on their site.
Oh, and if your PC has an internet connection, and if you've enabled Activesync Passthrough in Activesync's Options, nPOPw will work just fine using the PC's connection. Not 'synching' with the PC here, but rather an independent client.