I agree that a software interface would open up many possibilities, and I have been writing a program that will control the H8000FW remotely. I got a little sidetracked in the last months because I was able to start testing my software with an Eclipse. My hope is to be able to control both units via software.
The H8000FW is a great unit! I think you should get one and start learning how to use it now. It will take you a long time to explore all the patches and get used to what it can do. Hopefully, by the time you learn how the unit works, I will be able to deliver the software to control it remotely. If you wait for the software before you buy the unit, I think you'll miss out on a lot of great sounds…
By the way, are you using a PC or a Mac?