Same thing happened to us. Last night I checked our flights on Travelocity and it showed an itinerary change. When I called I was told the new flight times. Our flight from PHL to CLE would be arriving half an hour after our connecting CLE to MCO flight departed. My returning flights were also changed but no discrepancies there. They did put us on an earlier flight now so we can make our connection, but the layover is now 2 hrs, 45 min (ugh) Also, my flights do not show confirmed so I'm waiting and will check every day for changes.
To top things off, this is my second reservation. We were one of the lucky ones to have tickets on Midway. I'm happy to say I have gotten a refund from them though.