Thanks for the reply. Definitely interesting to hear what it is like on the "other side" of the drawing board. Android is actually an interesting case. Android

Thanks for the reply. Definitely interesting to hear what it is like on the "other side" of the drawing board. Android is actually an interesting case. Android applications are sandboxed. It's just that applications can request some very dubious permissions ("read all your SMS messages") and users don't know any better and don't read the fine print. The flexibility does allow for some excellent customizations (e.g. Swype keyboard replacement), but the risk of shenanigans is also there. TechCrunch says: One of the most popular forms of trickery in Q3 was SMS-sending Trojans that collect personal information and steal money. Another new method of stealing user information is malware that records phone conversations and forwards them to the attacker. These are not classic viruses in the purest sense. These are not, say, buffer overrun exploits. These originate from apps the user downloaded that do other, sneaky things. How do you protect the user from the user? The other flip side is iOS where almost everything is heavily locked down, except perhaps for the AddressBook API. The user is not very trusted, and essentially has no way of opting-in to anything really dangerous. This does severely limit the interesting cross-app interaction cases. But I can sleep safely knowing that my iPhone-holding non-techie family members can't download anything that would cause harm. Since educating users across the board is likely impossible, does this mean the tough Apple approach is the way of the future (loosely speaking)?