SInce Sanofi does not have a customer forum that I can see, I hope users of the iBGStar blood glucose meter for iPhone will see this update to my original post abut the meter.
The app does have a bug in iOS 6. You can upload readings form the meter still to an iPhone 4S or previous model running the software. But the app crashes if you try assign time of day and notes. So you can save the reading and enter insulin info, but you cannot tag it anymore, which severely limits the value of the reports the app generates for your doctor.
Today, October 17, 2012, I received my 30-pin to Lightening connector adapter for iPhone 5. I was able to sync the meter to the iPhone 5 using the adapter. But again the app still crashes if you try and tag an entry. To my knowledge, the app has NOT been updated in the app store.