Feature Request Oganic Groups Integration

A useful feature would be to have an additional set of options for OG (perhaps as a sub-module).

Suggested Permission Options:
- Member of same group as content and/or specific group(s)
- role with in a group

Use cases:
(1) Only Group Managers can access a particular field on a content type
(2) Only members of the Private Moderators group can see the details of a particular field

I have need for the second use case, but I'm not sure how I would add it to the existing Field Permission code, so I will probably add a custom module implementing hook_field_access.

(http://osseed.com/blog/user-profile-field-privacy-drupal-7)