Allow the Active Directory User object to support distribution groups.
I am getting major user push-back on picker control's because they want to add distribution groups to their forms as well as individual users. "If outlook can do it why can't your form?" <- this is what I am dealing with. The limitation is you guys. I Can do two different pickers, one for groups (using UMGroup SO) and another for users but this is a very inelegant solution.