Yes, It does! you can still log into the PTR with the old 2.2 build, and /console worldport and /console port work there.
And if you use the ACTUAL console, you can do a whois, which allow you to get an account name of a person, but no password. (Search "console" probally on the forums to find a guide to getting wow console working)
Note: This started working right at at 7:30 MST time, and probally earlier
EDIT: to GM isle and other places:
/console worldport 1 16222.1 16252.1 12.5872 ~ GM Island
EDIT2: This is actually much better... You may hate bold and such but...
DOES ANYONE KNOW OF A LIST OF PORTS TO PLACES LIKE EMERALD DREAM AND SUCH?