Official Twitter for BlackBerry App Released, Twitter Bought Tweetie, What’s Next?

I found it interesting that the first post on the offical Twitter Mobile blog:

Twitter for BlackBerry App Now Available

This is, to my knowledge, the first official Twitter client for any platform. Then, this item appeared in Loren Brichter’s blog:

An Amazing Ride

Loren developed the popular Tweetie apps for Mac OS X and the iPhone. This blog item announced that Twitter had purchased Tweetie and Loren’s services (as part of team Twitter).

Official mobile Twitter apps will certainly help new users jump on board quickly. But, I wonder if this will stifle mobile app development? What’s next for Twitter? Buying Tweetdeck for Android?