Editor's Note: This problem has not affected all users. I haven't seen it, but there is a confirming report on Twitter.
I was trying Barnes & Noble’s new Nook for Web.
It’s a very nice Cloud-based reading feature.
But I happened to switch to other tabs while I had one of the free sample books open and discovered the Gotcha:
I wasn’t logged in and this was a free sample book, so I really shouldn’t complain.
But it does make me wonder if this sort of timeout will happen when people are logged in with one of their own books.