Can anyone answer these?

  That Pearl variant -- how fast page turns?
  Is 80 chars width (code) readable on a Kindle DX? Others?
      If so, how many lines of code?
  Are there open source format converters to AZW?
  Can you make margin notes on a Kindle? Upload the notes?

  (Is E Ink really an alternative to waiting for Pixel Qi in [i]Pads?)

Edit: I googled page turn speed. One second. Too slow to browse, still. (I thought the time had gone down? Sigh...)

I don't think it's as slow as this. It doesn't feel that slow, at least.

Exact numbers seems to not be in reviews, strangely enough... Which probably means they are bad.

This has some values that supports around a second. (Browsing a book, PDFs are probably slower).

http://kindle2buy.com/?p=137

Frustrating for me; E Ink is probably more readable than Pixel Qi. But I want to browse code and generated PDFs from documentation etc.