Since the new interface change, tapping the "Calories In/Out" line in the statistics list under Yesterday or Last 7 Days results in unexpected behavior. Rather than pulling up the detail view for Calories In/Out, as happens when tapping the panel for the current day and had previously occurred when tapping the line under Yesterday or Last 7, the app launches MyFitnessPal as though one had tapped the plus sign button to log food.
I have MFP linked, so I don't know what the behavior is if one doesn't have MFP comnected.