I replied in the gargantuan 'Steve taking leave' thread but it'll probably go unnoticed...
I'm going to put my cards on the table here and predict that these new product announcements (iMac and Mac mini) will finally come in the next 1-2 weeks. Why? All this hysteria around Steve is bad for the company so they'll soften the blow with new products to shift the focus back to Apple and the Mac platform. Quite simply... assure the fans, stocks and shareholders that it's 'business as usual'.
I'm willing to put good money on it