Engadget summarized commentary from NIN’s forums and found NIN’s own Trent Reznor essentially rank ordering smartphone platforms with a brief commentary on each one.

Trent Reznor rips Apple, rates smartphone OSes

End result, despite the app battle with Apple, he still thinks the iPhone is the number one platform.

1. Apple iPhone
2. Google Android
3. RIM BlackBerry
4. Microsoft Windows Mobile