I have a Nook. I chose it over the Kindle for two reasons: Micro-SD card support, and ePub support. The 4Gb internal memory in the Kindle 3 largely eliminates t

I have a Nook. I chose it over the Kindle for two reasons: Micro-SD card support, and ePub support. The 4Gb internal memory in the Kindle 3 largely eliminates the need for memory expansion. The lack of epub is the deal-breaker for me. A Nook can read any epub from any store supporting the Adobe Digital Editions DRM. To my knowledge, this is all of them, including Sony. Of course, if the epub is DRM-free it will work as well. epub is an open format. It is mostly HTML/CSS, with support for embedded fonts and a normalized system for storing images, meta-data, etc. It is widely being supported by various open source tools. Google is making their public domain books available as ePubs (quality varies). Topaz and Mobi are proprietary formats. Kindle is the only reader of note using them. They can be converted to epub if the DRM is broken (possible, but YMMV), but it is often a time-consuming process, and thus not worth it. If the new Kindle would support epub, it would be a hands-down winner. But, of course, that would mean that people are able to purchase books from sources other than Amazon. Since the Nook runs Android, I am hoping some clever person figures out a way to hack the Kindle for Android app to run on the Nook. Best of both worlds.