Just boarding an Airtran flight now. Was unable to add my ER# at kiosk check in in MKE. Had added with online check-in on Saturday. When I got to the gate I asked the agent to add the info, and she was unable. She then called and was advised that F9 no longer has a partnership with Airtran? Seems odd. Looks like at the least I will have to call in and try this now. It would seem odd that they would continue the partnership now that they "share" a base in MKE.