Yes, found out the same issue with TweetDeck account. New web Tweetdeck works otherways perfectly with N9 but You only can scrol individual columns with two fingers and not wery well. (that selector at top midle does not do anything with N9)

With MyMoves this is impossible. I hope there is a possibiility to fix this because TweetDeck would be the best tool to use Twitter with N9.

http://www.tweetdeck.com/