Tweetie becomes Twitter for iPhone. Where does that leave Blackberry and Windows Phone?

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In an unsurprising move, Twitter has acquired atebits and their excellent client for iPhone (Tweetie) will become Twitter for iPhone. With that renaming, does Twitter close the door to Tweetie continuing on OSX, let alone appearing at some point in the future on & Windows Phone 7? I could understand to some extend Twitter choosing not to invest in desktop OS’es but it’d be a shame to see their official Twitter client restricted only to iPhone. Sure it has the lions share of the Smartphone market and there are other clients on Windows Phone and Blackberry but will having the “official” Twitter client only on iPhone be a good or bad thing?

Time will tell. Meantime, Dare has a detailed and thoughtful post on the topic