This is a clear marketing opportunity for the Android platform, of course since no one really governs its course, it's completely being missed. I suppose cheaper/more features/hotter phones is the way they want to go.
WP7 is even more secure when it comes to contact info -- you can only access contacts from an app via UI control, and then you can only return email/phone number from one person at a time (whichever the user has selected).
