Originally Posted by K-Thom
Let me rephrase your sentence:
If Amazon wouldn't demand this exclusivity and allowed Sony to use Mobipocket with DRM, ePub would not be making such inroads as it is.
prc ist a stable, robust format with a lot of possibilities. I will indeed miss it. But then, it still may be used (as I do) in a non-DRM fashion. For the common customer, epub doesn't have any outstanding advantages. Right now the format is more of a contemporary whim of eBook tinkerers to me (note: strictly personal opinion).
I'll probably keep format shifting books to mobipocket. I have three WinCE/WinMobile devices and while there is one epub reader for that platform, I like my mobipocket better.