IDG World Expo said today that “hundreds of new products” are expected to debut at next week’s Macworld Conference & Expo in San Francisco. IDG also announced that more than 275 companies will be exhibiting at the event, a slight drop from approximately 325 last year. The Macworld exhibit hall will feature the newest products for the Mac platform from companies such as Apple, Adobe, Aspyr, BlackBerry, Canon, FileMaker, Harman Multimedia, HP, Intuit, Microsoft, MYOB, Nikon, Quark, Roxio, Xerox, and many others. Exhibitors planning to debut new products at the event include: