That's an amazing project. You probably agree that it's extremely important that we own and control our own data and make it easy through OSS to manipulate and enhance it.
If any other diabetic programmers are reading this, I found the best way to get a control from this very complex disease is to utilize same methods I use when writing software and analyzing services.
My BF is T1D and has an Animas Vibe with the integrated Dexcom G4. I see from an older thread that this is the setup you are using. Can you point me toward any hacking information on this? On the OpenAPS flowchart for the Vibe it merely says to call Animas and advocate for the addition of temp basal commands. If we cannot get him to a full closed loop on this pump, even an open loop system would be an interesting place to start. Thanks for any pointers!