I've found it will seriously fuck your world. Not only did I have to walk like 3 or 4 miles home last night after changing some settings, it also seems to corrupt some of the values in the MS memory. Each time I write anything to the MS from Megatune with the usb adapter the car would run worse and worse each time. After writeing the settings from my desktop PC at home it would be fine. So even if it seems like it's working, it's probably not. Look into one of these:

http://www.quatech.com/catalog/rs232_pcmcia.php

I'm off to find one on ebay, i'll pickup a dualie so I can watch my wideband output also.

Edit: Looks like they are about $55 on ebay, no too bad I guess but that's a single. I can use the USB adapter for my WBO2 I guess.

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four nails four corners four riders and four horses