Well, one would of course hedge bets and reach farther by going for multiple platforms. But the whole point was that the Daily (and most iPad magazines) mostly go for a "PDF with bells and whistles" approach, and it is exactly that which makes the product poor in usability. PDF is the lowest common denominator, and also the worst in usability and value. But it shouldn't be to difficult to deliver a lean iPad App AND a PDF for those who wants.