Popular Twitter client TweetDeck has replaced 12seconds.tv with TwitVid as its default video tweeting platform.

TwitVid.com will serve as the video service across all existing TweetDeck products, and will be integrated within the services next iteration of its desktop product (expected release date is in April 2010).

“TweetDeck users are the most active on Twitter and we have found that they readily adopt new trends,” said Iain Dodsworth, Founder and CEO of TweetDeck. “The integration of video on Twitter is becoming an important part of the Twitter experience, and we expect this trend to accelerate. We were excited to establish this partnership, as the TwitVid platform enables us to provide TweetDeck users the best video-tweeting experience.”