The iPhone (left) places all apps in its home screen, adding screens as needed. You can move apps around as desired and place any four in the row at bottom that is available in all app screens. The Palm Pre (right) places apps in its App Launcher, also in a series of screens, and it too lets you rearrange apps and choose which four apps are displayed in the permanent, bottom row. You can also type the name of an app to find it and launch it on the Pre. The App Launcher can be confusing to navigate due to a combination of vertical and horizontal scrolling. Although the Pre offers a list view of all installed apps, you cannot launch any from the list -- an odd restriction.