Apple is expected to announce a bare bones, G4-based iMac without a display at Macworld Expo on January 11 that will retail for $499, highly reliable sources have confirmed to Think Secret (via eHomeUpgrade). The machine will be a slim form factor to go beneath or beside a monitor, and include a custom version of iLife. This one will target likley PC-switchers who would already have a monitor they might use with their shiny new Mac.