What features do you most want to see in Twitter?

[Guest Paul (MVP)]

As the title suggests, what features do you most want to see in Twitter?

For me, the biggest by far is 'groups'... so I can send updates to some people and not others by defining groups.

It'd also be cool if I could create groups that anyone could then join, like interest groups I suppose, 'football fans', where people can join and leave at will and chat. Not sure if that is what Twitter is about tho I guess :D

There was a bunch of other stuff I really wanted, but i've forgotten it all now... hehe... i'll post here when my mind returns :)

P