itwbennett writes: During an interview Tuesday at the MIT Media Lab, OLPC project founder Nicholas Negroponte said that the group will have a working prototype of the XO-3 tablet by December of this year. 'At CES  we will show a tablet that can be and will be used for children probably in the developed world,' Negroponte said. 'You'll see from us, God willing, an Arm tablet,' he said. 'The screen area will probably be a 9-inch diagonal, maybe more.' The most important feature will be a dual-mode display that will allow it to be used indoors and outdoors. Price: $75.