I believe the DeltaDash software maps itself to the 1st 3 ECUs you connect to it by reading the unique ID out of the ECU itself. DeltaDash also uses a parallel port dongle, and my guess it those ECU numbers are recorded in the dongle, so you should be able to use it on whatever you want if you can hack the dongle... or better yet, hack the software to ignore the dongle. 'Course at $300 for DeltaDash, it's really not too expensive for what you're getting, considering it comes with the proper OBD-II to serial cable that are expensive to build yourself.
BTW, there are two versions of DeltaDash, and the "shop" version (which costs boat-loads more) doesn't have the 3 car limitation, but you have to buy modules for each type of car you want to be able to reflash.
I should be getting my own copy of DeltaDash to go w/ my ECU, so no need to share w/ you Kevin.