Well, if you don't mind writing ugly code then think this would be doable in a macro for calc [...] This approach would also be more or less OS independent.
LOL, I do intend to clean up the code once I start creating the stats; right now it is just pulling in the data every hour and storing it in a local DB so I can add the stats whenever I want; at least I will have access to my historical data.

Also, php/mysql should run on most (if not all) OS's, so I would argue that it's pretty OS independant; it just may take a little more time to set up. Another advantage for me by using web technology is that I can host my stats page somewhere and access it from anywhere. I could even add some fancy notifications (email, sms, whatever). I know many apps exist that do similar things (I'm currently using the Miner Status Android App), but I like to have 1 nicely integrated app!

ps. this is a loooong round... (11+ hours)