In my e-reading life so far I've gone through 2 beBooks, a sony 650 and a kobo touch. They've all done the job reasonably well and I like the Touch best of all, but even it has some grating imperfections. The thing is, I'm not sure that anything out there is better. Is there a reader good enough to be worth switching over? These are my requirements:
- MUST be e-ink only
- Ability to add custom fonts
- SD/microSD storage
- Supports unlocked epubs
- Supports pop-up footnotes (epub3 files) nicely. Even better if the footnotes can contain images.
- Picks up tags which were created in Calibre and uses them to create shelves/tags/whatever. Plays nice with Calibre in general.
- Ability to do a complex tag-search from within the reader. For example, I want to search for all books which are tagged "science fiction" and "Canadian" but not "Robert Sawyer".
- As little registration/social networking/bookstore integration as possible. I plan to sideload all of my books.
- It would be nice if the reader recognized asian-character books and changed the font automatically only for those books. Right now I have to manually switch to an asian font, which then changes all of my English books to the asian font as well.
- Ability to display math formulas as content, not images.
- Charges through mini or micro usb, no custom cables.
- Ability to add custom dictionaries would be nice, although it's not a deal-breaker.
- frontlit would be nice, but not a deal-breaker.
I don't want much, do I?

Is there any ebook reader out there which provides most or all of these features?