To be clear, Apple's published statement is that it was blocked because it lets you purchase games through the app, which has been forbidden since day 1. They

To be clear, Apple's published statement is that it was blocked because it lets you purchase games through the app, which has been forbidden since day 1. They also state they are continuing to work with Valve to get it published (presumably with only the feature to play existing purchased and free content, like say the Kindle app)