Why such a high score!
You point out a number of failings and gripes yet still give it 80%.
So its got a metal back plate, but the extra £40 over the Kindle or Kobo-Touch could buy yourself some nice accessories those others. If you don't want a touch screen, buy the Kobo basic at £70 (I always add the penny to these prices).
A question about accelerometers, the only feature this has that the others don't bother with:
What do they do when your being bounced around on the train?
PS: I finally gave in and got a Kobo-Touch a little over a week ago (from WHSmiths £89), works very well. The only niggles that I would say could be better are:
You can only display PDF's in landscape, not a problem for books but it would be a good addition for the browser as most non-mobile sites expect users to have wider screens.
Sometime the touch screen is a little slow and you end up turning two pages.
The web browser sometimes does not react to clicking links (not a big deal as this device is WiFi only so it's not going to be used extensively)