With a laser light show and cabbie who jams on a sax, keyboard, and drum machine while driving with his elbows, the Ultimate Taxi may not be the safest way to travel. But the connected cab sure beats the usual cab-ride banter. The Web site lets you e-mail Jon Barnes directly into his taxi laptop, as well as check out the various activities inside the taxi. If you're ever in Aspen, flag Barnes down and your photo may end up on his 3-D site next to Michael Douglas, Jerry Seinfeld, Lee Iaccocca, and other famous fares.