www.megadrum.info

If you're eager to have a 'Quick Drum Map load' feature here is a firmware to test. While in VU meter mode and holding HH pedal pressed down, use keys UP/DOWN to load next/previous drum map.
Disclaimer: Untested by me, can cause serious damage to your MegaDrum, computer, drum kit.

Edit: Test version removed

The test version didn't work correctly and I removed it. A correctly working version is now in the 'MegaDrum32 firmware versions' topic.