I am the Exchange Administrator for a company that just rolled out 30 Droids- half are Droid X (mix of 2.1 and 2.2) and half are Droid 2 (all 2.2).
ALL the Droid 2 phones require the pin lock when connected to the Corporate Exchange account. Yet I have created and applied an Active Sync policy that does NOT require the pin lock or password and applied it to all mailboxes.
Applying the policy to the mailboxes of users with Droid X phones running 2.2 immediately enabled them to disable their pin locks. Problem solved. Applying the policy to mailboxes of Droid 2 users (also 2.2) did nothing. Nothing at all. Sure, I can disable pin lock if I remove the Corporate account, but if I re-add it, I am forced into the pin once again and the settings are again greyed out. If connected to the Corporate account, pin lock is enforced and control is greyed out on the phone. I have tried factory reset after the policy change and I have tried deleting the mobile partnership within Exchange. No luck.
The biggest problem for us is that our email, despite being set to push, only seems to sync when the phones are not in a pin locked state. Therefore, we only get email notifications when the phones are not time locked out. This is not acceptable in an environment where people are on call and phones automatically lock after 15 minutes.
I am within half a heartbeat of returning all my Droid 2s for Droid Xs at this point, and crossing my fingers that the next update doesn't break the Droid Xs I have. Exchange needs to work in every update or I need to find a different phone for my users.