Public beta version now available: HootSuite - Social Media Dashboard for Teams using Twitter, Facebook, Linkedin
As someone who's been waiting a long time (and still waiting) for an invite from SocialScope, I think the Hootsuite app is a welcomed alternative for those who need to update and want to check both Twitter and Facebook from one place.
I'm a big fan of the Hootsuite web interface, and like seeing that nearly all the features are carried over to the app such as scheduling tweets. But as a twitter app, I think there's still room for improvement. There's no auto-complete for user names, no "Go to user" function, and the lack of keyboard shortcuts (everything is navigated from menus) makes the whole process of using the app feel a bit laborious and slow.
I do find that the overall interface is pretty well designed, though it'd be nice to have some control over font size for tweets, composing, etc. I think those are more minor issues compared to the larger ones stated above. As this is still in "beta" I'm sure changes will be made based on feedback from users.