http://lifehacker.com/5561282/iphone-vs-android-vs-webos-a-counterpoint
my favorite part: "Openness; Winner: webOS Obviously iOS loses here, Android is open source for its core OS and allows installing apps from outside of the marketplace but so does webOS. Where webOS takes the cake is the fact that there is no rooting of your phone to get access to parts that are supposed to be locked down. How to root the phone is FREAKING IN THE DOCUMENTATION!!! It doesn't get any more open then that. And lets not forget the open nature of the platform to allow apps to be written in HTML, CSS, Javascript, or C/C++ if you want. Due to this wide open nature, amazing things like Preware has been made available to tweak every last "kernel" of your phone. Google also loses by making their "default" apps (Gmail, Maps, etc.) completely closed source and even takes down anyone who tries to share them. Palm on the other hand has written every built in app according to the standards they hold their developers to and made the apps all open source so you could see exactly how they built the app. Android and webOS are both fairly open, but webOS is more open and is the winner here."
