Which handheld device is able to run more than one app at a time?
The G1 Android can run multiple applications at once, unlike the BlackBerry and the iPhone. So if you want to see a 3D map of the Grand Canyon while sending an instant message to the babysitter and checking the precipitation in Seoul, then the Android is for you. Otherwise, you will have to use each application individually, a grueling task that can consume as much as thirty seconds.
SOURCE: In App Store War, Blackberry, Google Hold Own | Reuters.com