My new ipad is on the FedEx truck to be delivered today. I bought an imac a few months ago, my first apple product after 25+ years as a pc user, and needless to say I quickly fell in love with it. Yes, a convert. Now that I just bought an ipad I'm starting to wonder a little, will this new imac become a dust collector? What can the imac do that the ipad can't? And vice versa? Beside the obvious of course, which is fit in a briefcase.