2,412 karma · joined June 30, 2010
More info: http://colloquy.info/project/wiki/PushNotifications
Palm Treo: http://blog.treonauts.com/picKeyGuard01.jpg
Palm Windows Mobile: http://www.hpc.ru/lib/arts/2364/palm-treo-750v-keylock.gif
Windows Mobile: http://cdn.pocketnow.com/wp-content/uploads/2009/08/DeviceLo...
For example, on iOS, it looked like this almost two years back: http://www.neowin.net/images/uploaded/iPhoneNumber.png (as seen on this page from October 2010: http://www.marismith.com/facebook-phonebook-how-safe-your-ce...) I don't have any old screenshots of the Android version, but the current app is similar to the iOS screenshots above.
It's not a "weak argument", it's the reason why iOS is one of the most secure platforms out there, and way more secure than Android, Windows, (most) desktop Linux, and OS X. Other preventative technologies (e.g. ASLR, DEP/w^x, etc) are on those platforms, but none of them have the same kind of pervasive code signing that you see on iOS (and often video game consoles).
This post is essentially just a compiler warning fix for the (much more interesting) one linked.
However, it's certainly possible, but as 'mparlane says, it would be a lot of (difficult) work.