[greenpen]

IMO, theological thing for Amazon to do would be make apps for the Nook, Kobo etc. I really want the new Nook but nearly all my ebooks are from Amazon and read on my iPhone. If I could get a eReader that could do all the different formats with e-ink, I'd rush out to buy it! Seems there's a hack for Android Kindle app on Nooks but I'm not familiar enough with circumventing hardware to dk it yet...

The Bebook reads most formats. I have had one for some time. It's not quite as easy to use as the kindle, but it gets the job done.
http://mybebook.com/6-inch-ereaders/c14/p5/bebook-one-ereader/product_info.html