I've updated our GamerCards page with an option to select a single platform skin (currently only PSN supported). I know this is a feature a lot of people requested in the past since not all of you have multiple systems. We'll add a Live and Steam card once the feature is out of beta. Let me know if there are any bugs as it's not been tested extensively yet.
http://gamercards.exophase.com/
http://gamercards.exophase.com/