Apple will not be debuting a flat-panel iMac at next week’s Macworld Expo, according to MacUser UK — echoing our report from Wednesday. Instead, the company will roll out speed-bumped iMacs in their current form factor at speeds of 650 to 750 MHz, as well as two new colors to replace Blue Dalmatian and Flower Power. Additionally, Apple will offer sizable rebates on printers and digital cameras to entice customers.