Yep thats very doable! I've been looking at my skin temperature data for a couple days. Not sure how accurate it is, and that could be why MSFT hasn't made it publicly viewable in any of their standard apps.
I can do real time data easily. Are we looking for like a log of data that you can view over the past day (an expansion of Microsoft Health)? What type of data are we looking for? The available sensors are
Accelerometer Provides X, Y, and Z acceleration in g units. 1 g = 9.81 meters per second squared (m/s2).
Gyroscope Provides X, Y, and Z angular velocity in degrees per second (?/sec) units.
Distance Provides the total distance in centimeters, current speed in centimeters per second (cm/s),
current pace in milliseconds per meter (ms/m), and the current pedometer mode (such as walking or running).
Heart Rate Provides the number of beats per minute, also indicates if the heart rate sensor is fully
locked onto the wearer’s heart rate.
The data returned should be used only in resting mode. The Band SDK does not provide
access to the heart rate values optimized for any other activity.
Pedometer Provides the total number of steps the wearer has taken.
Skin Temperature Provides the current skin temperature of the wearer in degrees Celsius.
UV Provides the current ultra violet radiation exposure intensity.
Band Contact Provides the current state of band as being worn/not worn.
Calories Provides the total number of calories the wearer has burned.
are we wanting all of those? and in log form over the scope of a day/week etc?
Also, I have a camera control app getting pretty close. Just trying to work out the interface portion and a few other quirks.
Have you guys heard of TestFlight? It allows iOS users to test apps from developers. I haven't personally used it, but since the Band is pretty complex, I'd like to have Beta testers use it once i get a good version. Let me know who would be interested!