We’re tremendously fond of collaboration tool Trello, which just announced that it’s being purchased by enterprise software company Atlassian for $425 million. Trello claims that it will be able to take advantage of Atlassian’s research and development to improve its service, but some users are concerned that Trello will become as complex as other Atlassian products. Regardless, since Atlassian paid so much, we suspect that the company has big plans for Trello, so we’re not too worried about one of our favorite tools going downhill.