Some good:<p>* The "queue" design closely matches my use of Google Reader: skim through new items, opening anything interesting in a tab.<p>* The design is simple, readable & reasonably attractive (except the text shadow on headlines, but that's just my taste).<p>* Lightboxing of articles is clever & useful.<p>* I like the behavior of expanding articles in list view better than Google Reader's behavior.<p>And some bad:<p>* I can scroll the whole UI up & down by a few pixels. (<a href="http://i.imgur.com/LIjQf.png" rel="nofollow">http://i.imgur.com/LIjQf.png</a>)<p>* Firefox Aurora takes about a second to switch to the FlowFS tab if it's been in the background for a while. Not sure if this is your bug.<p>* The "show more" button seems to either fail silently or take an unreasonable amount of time to load. Some visual loading indicator would be nice.<p>* There's a bug when closing an expanded list-view item. (<a href="http://i.imgur.com/UErc8.png" rel="nofollow">http://i.imgur.com/UErc8.png</a>)<p>* I'm not sure how you're going to make money.
Speaking as a wannabe ex--Google Reader user:<p>1. `N` doesn't move me onto the next item.<p>2. There are icons at the top --- X, Q, etc --- and I don't know what they mean. I expect there to be mouseover text explaining what they do, but there isn't.<p>3. It's a bit slow (admittedly this is with Firefox 3.6 on a netbook).<p>4. "FlowFS, a Feed Reader to Keep Your Inbox Clean" --- When I hear "inbox" I think of my e-mail inbox, and "[keeping my] inbox clean" means (to me) getting down to zero e-mails in my inbox and staying there. But FlowFS is a feed reader, not an e-mail client, so I don't know what the sentence is supposed to mean.
As a technical demo, awesome. Off the bat thought can you put tool tips on buttons when I mouse over? It would be cool to know when things did before click on it.