I just received the official notice of approval for my I-485 and my bio is scheduled on mid-September (yes, they approved me before my bio; don't ask me why). This is what the notice says:
"The above application has been approved. Prior to receiving your PR card you may be required to report for biometrics processing. Please do not take any action at this time. If you are required to report for this processing, you will receive another notice advising you of the date, time, and location to appear. If you have not reeived your cardor the above mentioned notice to appear for biometrics processing within 60 days, please call this office at the number listed below."
I guess it makes more sense now.
"The above application has been approved. Prior to receiving your PR card you may be required to report for biometrics processing. Please do not take any action at this time. If you are required to report for this processing, you will receive another notice advising you of the date, time, and location to appear. If you have not reeived your cardor the above mentioned notice to appear for biometrics processing within 60 days, please call this office at the number listed below."
I guess it makes more sense now.