it's been fun to watch the BMV-700 monitor, but i wanted long term data to be collected. i thought the dongle and app would allow me to capture that data, but posts like this one now make me think that is not true? The trend data seems to reset every time i reconnect bluetooth, i see the app can download its own settings but not any data files. is this how it's supposed to work?! if so, i see little advantage from the dongle. please tell me i'm missing something.