That's a good start for Portal 2 on PS3 compared to 360. Most titles from developers who are seen as previously 360 centric seem to struggle (like Bulletstorm most recently) on PS3 but Valve pulled it off.
Mind you, from the moment Gabe himself ate humble pie at E3 I knew they were going to make sure by the time Portal 2 launched most PS3 folks who might be interested would be happy to embrace the title (free PC/Mac copy also helped I'm sure).
Good sales for 360 of course, both console and Portal 2.
For a game with no shooting and a quirky style it's opened well and of course we can't see the Steam sales, which I'm sure will be strong.
Poor Valve (leaving Sony aside for a moment) as the PSN debacle has somewhat soured Steam hitting (or rather failing to hit) PSN. I'm curious to see how it feels but can't at the moment.
Try to be reasonable... its easier than you think...
