I know they're not really popular but they are a really good idea.
For me, they would be great if they would be more like a "sink" or rss feed. Add and remove services (very much like the Today's but more flexible).
Also, can't forget that Falcon is a scope and it does a really good job for me ^__^.
Let's not forget the scopes.
For me there are definitely some to be moved to openstore:
- The Weather Channel
- Twitter Scope