Sounds good but does the software beat the Kindle?
The clincher is the software though. No point moving away from my cheap-as-chips but functional semi-open (with enough hacking/conversion software) Kindle unless a new eReader introduces one or more of the following,
1) PDF page reflow, font-scaling, high quality maths typesetting, tables, diagrams, maps, fixed-width fonts for code
2) supports multiple languages properly with selectable default languages, decent glyphs and fonts, Asian-script support and menu languages
3) supports handwritten/stylus for annotations
4) multi-level collections or folders/directories
5) preferably customizable user interface, including screensavers and optional book cover display.
Color would be nice too, but not required.