I use DroidVPN and couldn't be happier. It is easy, fast and free. What more could.anyone want?
They have posted through xda, but it is in the market. It is beta, and they are giving free accounts upon email request.
For the record, I have used it successfully with 7.1 stable and several builds of the 7.2 MiRaGe kang. So far, I haven't had any luck with cm9, but I haven't tried very hard either.