Disagree with blocking email on personal phones
Clearly never heard of remote wipe on ActiveSync devices?
Our ActiveSync policy allows users to sync to their personal mobes, But crucially the policy is set so that it forces the user to lock the device with a PIN (won't let them sync without this) and allows us to initiate a remote wipe from our Exchange console, should we need to (e.g. dispensing P45's for whatever reason).
To say you can't do it, or shouldn't do it, is completely missing out an entire range of applications. You should know this at el Reg :)