CycloWiz is now fully upgradable from PC as well as DVD! The PC flashing application, using standard dvdtool cable, was just released in Team Cyclops forums. It allows you to upgrade CycloWiz V1 to support D2B, and even to recover your chip from a bad flash in case your dog pressed the power button while you were upgrading.
We have also uploaded the file which contains necessary files as well as instructions for your convenience.