Has all the features I'm looking for except for one:
The ability to open all new pages in new tabs and also mark them as read with one button, ideally from the button in the toolbar. Right next to "open feed reader" and "find feeds in current tab" should be "open notifications in new tabs and mark as read".

Edit: Never mind, view mode 6 has an embedded iframe of the site. This is perfect. (Would like it to be open source tho)