Once the race to open up begins among competitors, there is only one possible conclusion: total openness. Call it a race to the top, rather than a race to the bottom, since everyone gains. Here's the latest – and potentially highly important - example: Facebook, responding to Google's Open Social.
Sometime soon, perhaps this week, Facebook will turn the year-old Facebook Platform into an open source project, multiple sources have told us. The immediate effect will be to allow any social network to become Facebook Platform compatible - meaning application developers can easily take their Facebook applications and have them run on those social networks.