Right now there are some pretty complete XDF's for the 512K PCMs, as you really only want to use the 2002 unified OS for most swaps. The unified OS lets you easily swap blocks to get the engine/transmission combination right, and has the widest coverage of features out of all of the other OS's.

As to the 1mb PCMs, we haven't had a free/inexpensive way to read/write them that didn't already have the ability to edit the PCM, so not too many people have messed around with them yet. Once your tool is released, I don't expect it will take very long to get a WIDE variety of XDF/ADX contributions. I believe we already have a few people working on the blue/clear PCM as well, I've done some work with it and EJ282 has done some. Those applications will likely be slower to come to fruition, but as the hardware is very similar, it won't take too long to get them all going, I think.