Here’s a feature I’d like to see in future versions of Amazon’s Kindle’s software: user profiles. My wife and I would like to share the same Kindle, she with her books, me with mine and both of us sharing the NY Times, the New Yorker, etc. The best way to do that would be for us each to have separate bookmarks, so that I could just pick up the Kindle, switch to my book marks and pick up in the document and on the page I was last reading.