oh and left arrow to open the comments is debatable, but i kind of like it. my reading pattern is to open a bunch of tabs... right/enter to open the story and then left to open the comments... then when i have time, i go through all the 'interesting' stories.

what i'd like to do is add kind of a bookmark and tag system so that you can store what you want to read later and be able to tag it so that you can search for it. favorites is close, but it doesn't quite cover the same use cases.