I changed the defaults for JBoss 5 some time ago.
I also asked on the dev list whether the same should be done for 4.2.
Yes, there could be a better name :)
As to the switch to C from A for the BMP, that was needed to pass a test in the CTS. In my opinion we don't have to change our defaults actually. I am awaiting a response from Sun on this issue.
Can you come up with a better name for cmp2.x jdbc2 pm? This is a time that it can be changed.