Embrace the use of lists and its workflow (think tweetdeck). Side by side lists. I insist on side by side because you don't want one particular list stopping co

Embrace the use of lists and its workflow (think tweetdeck). Side by side lists. I insist on side by side because you don't want one particular list stopping content from other lists to catch your eye. Implement smart/personalized lists by interest and suggest them to users, suggest new people to add to existing lists and/or tweets that may be relevant to that list. A bit like spotify playlists and smart radios, but oriented to tweets. Basically, make it easier for people to find tweets and users they want to follow, segmented by interest. Display relevant non-intrusive ads based on the interests on that list. They should take the hint from reddit regarding what "non-intrusive" means. Adding something like Reddit Gold wouldn't be a bad idea either. Apart from that, a nice interface to follow live events and their tweets would be awesome.