Microsoft to Introduce GBA-competitor?

An anonymous reader writes "It seems that Nintendo will have a competition in the handheld market soon. ZDnet has an article that says Microsoft's plan to introduce a 'Media Pad' which includes among other things 'serve as a portable game player in conjunction with Microsoft's Xbox video game console.' So I guess the news I heard regarding their interest in the portable industry will soon come true, the question is, can they take the crown from Nintendo?"