[rcraft]

Some thoughts on item #3:

Offering the ability to follow hashtags in their current form would simply lead to more hashtag spam.

However I agree with your basic premise that following topics and geographical Tweets would be very useful. One of the main reasons I built GroupTweet. Allow people to form and manage "group" topical or location based accounts with any number of contributors while giving some admin controls like limiting approval to all or only select participants, moderation, etc.

Would love any feedback and suggestions on how we could improve to make your suggestions more of a reality.