I performed the partition using the original guide in the UD forum. It took and I was set up with Droid Swap. When I went away from UD and joined CM, I backed up my SD, reformatted and installed Rom Manager and the ROM. To my surprise, I still had the partition and apps2SD was active. So....this begs the question of how to revert. Evidently reformatting does not kill the partition.
If I remember, to open up partitions, there used to be a command when installing OS, that actually deleted it and then you had to reformat to get a useful disk.
I do not have the option to unmount or reformat the SD from the phone anymore. I assume that this is because with the partition, you cannot unmount properly with two partitions active.
If anyone can enlighten me, I would be much appreciative.