Personally...I just got the 3 x2 240GB. I upgraded from my 60GB Sata II Vertex, and for the most part, I don't notice much difference. It loads windows (7) faster and loads serious sam 3 in about half the time. I don't think it was worth it, but I love having the latest and greatest.
OASN, the Revodrive 3 x2 Max Iops were delayed because they aren't any faster than the 3 x2. If you head over the OCZ forums, you can see the community's personal results.