Time Inc's flagship magazine Sports Illustrated is showing off a prototype it has built for the tablet PC. Combining the tactile appeal of the print product with the rich media capabilities of the internet, it's a mouthwatering proposition for genuine convergent journalism. But would the punters pay for it? Sports Illustrated editor Terry McDonnell is bullish. He reckons most focus group members that have seen it have said they would. Some have even said they'd go as high as 50 dollars for a subscription. Even more tellingly, he says: "I'll bet you that advertisers will be willing to pay more for this." Time Inc's promo video is below, and underneath that is some video footage of the real tablet version in action. McDonnell's interview is here.