The big news in the ebook world is that Sony, creators of my beloved PRS-505 ebook reader, are going to make all the books at their store in the open epub or Adobe's DRM'd version of epub format, effectively killing their proprietary LRF ebook format. There's been a lot of criticism on Teleread of the NY Times brushing over the fact the Adobe's format is just as proprietary as any other, though some think the ease with which it can be hacked may be a bonus feature. However, any move towards open standards I'd say is a good thing.
One thing nobody seems to be pointing out though, is that if the LRF format dies, any books I have in that format (which I probably paid good money for) will soon become useless. Sure my PRS-505 will still read them, but when I upgrade to a different reader sometime in the future, will it be able to? This is, of course, one of the problems with proprietary, DRM'd formats in the first place, if the format goes down so do your books.
Also, this emphasizes the fact that ePub is becoming the defacto standard ebook format, and the Kindle is really the only ebook reader now that can't read it. Inevitably, it must come around.