[drivebyacct2]

That's not quite the whole story. Some apps can inject extra state - so when I get an email, pull down and click, read the email and hit "back" it takes me to the inbox. Back again takes me right back where I was.

I mean, come on, someone give me an example of going app->app and the back button not getting you back to where you came from.

[dfxm12]

I don't think this is exactly what you are referring to, but there are apps, like feedly, where the back button brings you back to the home screen, and not back one screen. I don't know if this is because these apps are "ports" from iOS, or the devs are ignoring Android specific features to make it easier for themselves, or something else.

It's not Android's fault but it does frustrate me that different apps treat the hard button differently. FWIW I would rather have it this way than the way Apple handles it.