Well, I can't really buy much from iBooks anyway, even if I wanted to, since I am not American
So Apple is not really going to gain market share from people like me by this move, and is just going to annoy people who shelled out $500 for a physical object and therefore feel like they own it and it should be there business what they do with it
But then again, of the last 10 commercial ebooks I did buy from major publishers, 9 of them had sufficient typo errors that I regretted the purchase. I want to read, not copy-edit. So I am wary of spending *any* money on mainstream ebooks right now. If I can't get it from the library, I'll have to really badly want it before I'd consider shelling out.