I would like see access to public and private Twitter lists.
* Subscribe to changes to my own private and public lists
* Subscribe to changes to other people public lists
* Get a list of members of a third parties list.
I have a specific use case in mind. I work in the lingerie and sportswear industry, and many models are on Twitter and get creeped or stalked. It's not bad enough to warrant a police report, however having a flow to facilitate aggregating #Creeper lists would go a long way to automating a shared block/mute list for the industry.