I was watching a video last night on one tab and switched to another tab and it was still playing in the background. I was shocked. I don't remember being able to do this with any of the iPads that I've owned such as the iPad 3, iPad Air 1, or even my iPhones. If I swithced to another tab, the video always stopped playing. Is this new to iOS 8 or can you only do it on the iPad Air 2 since it has 2GB RAM?