I have a Windows Mobile Pocket PC (8525), MacBook Pro, and Parallels running XP. I want to use the Windows Mobile Internet Sharing for my Mac, this can be done easily on the OS X side with Bluetooth PAN but not with USB. The problem is that Bluetooth limits my speed to about 250-300k. I can use the Internet Sharing feature in XP with USB and no problems, my speed in the 3G areas is great. Question is, is there any way to share that XP connection back to the OS X side?