Macworld and Aspyr will co-host the sixth annual MacBowl tonight, a Macintosh industry bowling competition and benefit event to support the computer lab in an at-risk San Francisco elementary school. A record number of top Macintosh industry companies compete tonight for the MacBowl honors and raise over US$27,000 in cash and equipment for the computer lab at Marshall Elementary School in San Francisco. A complete list of participating companies can be found in the press release.