Hi,
I'm the lead dev on ZPSX, a playstation emulator on the Sharp Zaurus. I'm pretty new to the Zaurus "scene" but am familar with many other handhelds. Danboid was nice enough to tip me off to OZ. I've been using pdaXrom until now.
If nobody else is currently working on whipping up a kernel patch for BVDD support in OZ's 2.6.16 kernel, I'd be very interested in giving it a go. I've never done a kernel patch before, but that shouldn't be much an issue as I pick up on things quickly.
Once BVDD support is in place for OZ, we can get SDL to support it in a short matter of time. Meaning a new and faster ZPSX for the Z, and OZ in particular.
Hope I can help.