In this Electronics video tutorial you will learn how to multi task on your Blackberry. This video is from www.myblackberrytv.com. From the home screen, while holding down the Alt key, press the back key. Each time the back key is pressed, a different item will be selected on the top bar. All the icons represent the entire range of applications that are open on the blackberry. Select the ‚Äòmap‚Äô application. Once you finish with the map application, you can switch back to the home screen by holding the ‚Äòalt‚Äô key and pressing the ‚Äòback‚Äô key. This way you can switch between applications very quickly.