The Merc's Dan Gillmor, writing from Apple's heartland in Silicon Valley, speculates about the old Mac-on-Intel issue in his pre-MacWorld column, while admitting that this is very unlikely to feature in Steve Jobs's MacWorld keynote tomorrow. In eWeek, Matthew Rothenberg gives some credence to the Mac Tablet idea. The video iPod is being most widely tipped, but CNet has a good round-up of possibilities.