I accidentally hit a key or two on my phone and it showed me all open apps, just like ALT/TAB does on my desktop. What did I accidentally hit? I'd love to be able to do this all the time - I didn't think the windows mobile op system phone was capable of doing this. Thanks Aha - found it. Keep finger on BACK button
Yeap, you have just discovered Multitasking (read more about it here). Feel free to visit the Windows Phone website where there are plenty of simple How-To instructions and demos on almost everything your Windows Phone is capable of.