You need a denser UI. I can only see 4 bookmarks on the screen at a time. Raise that to at least 10. Categories and tags are redundant. Remove categories. I li

You need a denser UI. I can only see 4 bookmarks on the screen at a time. Raise that to at least 10. Categories and tags are redundant. Remove categories. I like the automatic tagging, but I may want to manually edit them sometimes. Link to Twitter.com's profiles and tweets. Re-tweet buttons would make sense.