You can now hack up groups so you can see a selection of user spaces in the one space, here is johnt, elsua, and ChrisSaad, it seems this one only shows posts from these 3 users, not inlcuding their friends posts.
Bookmark this page to just see this group stream.
If this page would generate a feed I could convert it to email and be able to just follow a few people.
The Twapper stream will also show thumbnail images of links to Flickr items.
If you want more you’ll have to join 30 boxes, here is their message:
“Pssst. You can update, send direct and group messages through twapper. Join 30 Boxes, add twitter to your Web Stuff, and post an update to twitter from our Status line. Then login on your mobile and you are good to go!”