Can Exchange Mobile Security Policies be applied to the Google G1?

We have a user that want's to synchronize his Google G1 device with our
Exchange 2003 server. He is using Android software from Touchdown. We
require that security policy (lock the device after 60 minutes of inactivity,
and require a 4 character password, allow remote wipe) be enforced on all
devices synchronizing with our Exchange Server. How can I determine what
Exchange security policies I will be able to enforce on a Google G1 running
Android software??

Thanks for any help you can provice,
Mike