ModBook maker Axiotron has announced that it's retooling the device, which is based on an Apple MacBook. As a result, first deliveries of the ModBook have been pushed back to May, 2007.

The ModBook made its debut at a joint press conference held by Axiotron and its exclusive North American distributor Other World Computing during Macworld Conference & Expo in San Francisco this past January. The device is, at its core, an Apple MacBook, with its keyboard removed and screen replaced with a touch-sensitive screen that works with a pen stylus. It sports other embellishments as well, such as a GPS antenna and a re-positioned iSight camera better suited to the device's flat orientation.

Axiotron president Andreas Haas said that the company is doubling the pen tablet sensitivity from 256 levels to 512 levels as a result of feedback from prospective customers that plan to use the ModBook for illustration and graphics work.

The upgrade is being made to all ModBooks that Axiotron and OWC have accepted orders for since the introduction. Look for the ModBook to ship in the U.S. and Canada in May, 2007.