Flow

Another Android v.iPhone difference is flow. The iPhone is very modal. You start at your home screen. You go into an application. You do what that application does. You leave that application and are back at the home screen. On Android, by contrast, you dig in and back out. You jump between applications. You can back up to where you were.

Here's an example. Open up the Clock app. Flip the phone into landscape mode. Click the Music icon. Now you're in the Music app. Click back, you're back to the Clock app. Now wait for an email. You get a notification. Click the notification bar and jump to the email notification. You're in the email app. Read your email. Back button to the Clock.

That's flow. Android has it. iPhone dreams of it.