Apple has been working on a rumored tablet computer since at least 2003, claims a group of the company's former workers. Although a final tablet may only be released in early 2010, 2003 is said to have seen the creation of a PowerPC-based prototype, one which would have been impractical for anyone to use. "It couldn't be built," says Joshua Strickland, a former Apple engineer. "The battery life wasn't long enough, the graphics performance was not enough to do anything and the components themselves cost more than $500."
