Amazon specifically, may also consider supporting ePub. They're starting to look like a Windows media-only playing music device...
That's one thing we can agree on. There's a lot of content out there that I'd love for my wife to be able to get on her Kindle
That wouldn't help, until stakeholders agree on interoperable DRM scheme (or get rid of DRM entirely), which I don't think is likely in the short term. DRM-free ePub content is already relatively easy to put on Kindle, using either Amazon's own conversion service or one of several good free conversion utilities.
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Dragi "Bonzi" Raos
Q#5196
MkII #080000376, 18GB green
MkIIa #040103247, 60GB blue