More on that little Sony

[janewilliams20]

The fold-up Tablet P. I haven't yet seen one for real, but I'm reading reviews.
http://reviews.cnet.co.uk/ipad-and-tablets/sony-tablet-p-review-50004946/
http://www.itpro.co.uk/635950/sony-tablet-p-review-first-look
http://reviews.cnet.co.uk/ipad-and-tablets/sony-tablet-p-review-50004946/

The criticisms so far seem to be its limits on playing videos (only uses one of the screens) and on gameplay (no physical controls, only on-screen). Neither of these are my man purpose for getting it.
As an e-reader, apparently it's not as crisp as the Kindle. I'd better try it and see.
Keyboard - comparable with a laptop? Sounds good!
Given my intended use, I don't think the admittedly low storage is likely to be an issue.

One query remains unanswered - can I edit documents on it?

Edit: the Sony forum provided answers again. There's a couple of recommended Android apps for the purpose:  "Documents To Go" or "Quickoffice Pro". Neither are free, though there's a free read-only version of DtG.