EDIT: Thanks for catching my embarrassing typo, commenters. The adaptor plugs into the micro-USB jack, not the microSD slot. Wow.
Wirefly was lucky enough to be visited by an HTC rep today who demonstrated the use of an accessory adaptor that turns the Incredble’s micro-USB into composite video cables for your television. Check it out in the video below. No word on a street date or price just yet.