Security on your mobile device is very important and we know that there is a lot more we can do in this area. The Mobility Pack did just release version 1.2 on August 5th. See blog from Alex Evans...
However, the security features you are asking about are not available yet. We are looking at MDM solutions and will further improve our security capability in future releases of the product. The next release of Mobility is schedule for early Q4 and includes support for Tasks and IOS5.