Valve has confirmed that the Orange box for Playstation 3 will be released after the PC and Xbox 360 version of the game. Valve claims that the delay has nothing to do with the console.
The main reason behind the delay is that EA's UK team that is handling the development is on the "other side of the ocean" and that it is normal that they are a bit behind Valve's original team.
For now PC and Xbox 360 versions should hit Europe on October 12th and the US should see it a bit sooner, October 9th. The colored box will contain Half-Life 2, Episode One, Episode Two, Portal and Team Fortress 2. So that sounds like money well spent.