I think it is a different problem now because Tweetian and native client worked on both of my N9s, and Rocket on one but not the other, but as of sometime in July (I think), all Twitter is broken. So Twitter must have recently changed something in the API and broke all the older apps.

Rocket especially was really nice because you could set it to show as feeds on the notification screen (like the Native client but better).

But now there is no more twitter. I am very sad about that because I will now probably move from N9 being my primary phone (not sure because it is still nice and I like being able to charge my phone only once a week or so; N9 is still great as a telephone). But Twitter completely breaking now on all apps is probably the last straw for me.