The shot isn’t a whole lot to go on, but it was a) tweeted by Tapbots designer Mark Jardine and b) features that distinctly yummy Tapbots aesthetic, so I’d say that it’s a pretty safe bet that this is the mythical Tweetbot that was announced in April of last year.
I also know through Twitter that a number of bigger fish in the iOS enthusiast community already have their hands on a Tweetbot beta, so we should hear more in the coming weeks/months.
