Nothing about the lack of multi-tasking?
iOS has always had multitasking. The difference though between it and Windows is that Windows is much quicker at it. Do a four finger swipe across on your iPad and it'll return you to your previously opened app. Also, all iOS apps stay open. They're not necessarily running (depending on the app), but switch back to it either by double-tapping the home button or just launching the app, and you're at the same spot where you left it. And third, there aren't a whole lot of apps yet on any tablet -- iOS or Android -- that really lend itself to multitasking. On iOS you can have the Music.app running while you launch some other apps, but not all. Part of that makes sense like you don't want to be playing music then launch a game like Angry Birds which has its own music.
Anyways, good luck to Microsoft for advertising ASUS' tablet. They can't even advertise their own Surface notebook/tablet and have to focus on someone else's Windows machine.