A couple of quick questions about possible enhancements... bottom-of-the-wishlist-pile type stuff. Just throwing them out there.
1) How hard would it be to have a user configurable preference for which view they'd like to open by default when they selected an (x)html book-file. For instance, I'd like for files to default to opening in Code View instead of Book View when first opened. I wouldn't want that for
everybody; hence the preference setting. Or is it already available and I'm just missing it like I was number two?
2) Never mind about number two... I see it's already implemented.

But why on earth is the "Close Other Tabs" feature (ctrl+alt+w) hiding out with all the keyboard shortcuts? I would have loved to see that puppy front and center a long time ago.