Just posting a helpful note here, I've never been bothered to fiddle around with my phone but sometimes it's a little annoying not to be able to get the 'Task Manager' when you want it without closing your app and pressing the top-right corner just to get to it, and it doesn't allow you do switch between apps.

You could try going to the windows directory in your mobile and looking for TaskMgr and create a shortcut for it in your Start menu, because the Start menu doesn't hide when you open your apps, you can just open the Task Manager (There are 2 types in your Windows directory) without closing the app and waiting for the top-right button to load.

Anyway, just a note from a frustrated WinMo user
rawr