Would you like a $49 electronic college textbook with lifetime updates? — from crunchgear.com by Scott Merrill

From DSC:
I was just talking about this idea earlier today at lunch. Why can’t a textbook be like/look like/act like/and be distributed more along the lines of an app from an online app store than a static, physical textbook? Why can’t someone purchase a lifetime stream of updates? Or at least an annual agreement for such a stream of updates for the next 12 months? Alternatively, perhaps after purchasing the original book, a person could opt in for an upgrade at some point (much life software)?

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