I've tested the MPK61EX codec with Reason 7 and am happy to report that it works. There are new devices that need to be added to the Remote Map file in order to have control of their parameters, but all existing devices can be controlled as expected. If anyone needs to control a new device, either group it in a Combinator and map the most needed controls to the 4 knobs and buttons on the combinator, then those can be controlled. If if you are more adventerous, consider editing the Remote Map file. If you do and would like to pass it on for others, I would be happy to share it.
One other thing, I've turned comments off because the only comments we're getting are from spammers. It's not worth my time to monitor that anymore, so that's that for now. Contact me if you have something you'd like to add and I'll post it.