ECart has been updated for MySQLi.
You could probably use the repeat region server behavior to manually do a repeating table with the MySQLi server behaviors.
We were delayed once again with the Data Bridge update for MySQLi when CC 2015 came out and broke a lot of our existing UI's. We should have the CC 2015 UI's ready by early next week and can go back to work on the DataBridge update, however it will still be several weeks before that can be completed.