Talk about just in time. With merely weeks to go before Mr. Claus makes his wintry journey 'round the globe, Mad Catz has decided to finally ship a peripheral that was introduced way back in June. Without a doubt, the MIDI Pro adapter is one of the more intriguing music game accessories to hit the open market, enabling Rock Band 3 owners to use most MIDI keyboards and drum sets with the title. The box is shipping as we speak for Sony's PS3 and Nintendo's Wii, and the Xbox 360 variant should be headed to Best Buy in the coming hours. If you'll recall, this guy's also designed to work with the forthcoming Rock Band 3 Squier guitar / controller, and it even features a velocity sensitive adjustment for MIDI drums designed to reduce cross-talk during play. At $39.99, it's a no-brainer for those who already own a MIDI instrument or two, but we just might be more excited about the hacking possibilities than anything else. DIYers, get at it!