Hello,
I developed a new today plugin that checks your Sprint minute usage. Its (slightly) rough at the moment, so it might not work if you have some plan type that I'm not aware of. It's written in c++, but the part that checks your minutes is written in .net. It's beta software, so it might fry your device, although its running on my titan just fine.
EDIT: update to version 0.3a, should fix some minor problems. If anyone knows how to check if you are on the new billing system let me know.
To install, download the cab from my website:
http://www.weienterprises.com/nue/
Go to the today screen and enable the plugin, then press the gear on the today screen to configure it. You MUST save your username and password for My Sprint for the today plugin to check your minutes. If you would like to reconfigure the order things appear on the screen, go to data, press refresh, then go to today, and configure as you please. To force a refresh, press the internet icon.
Basic instructions:
Install
Go to today in control panel, enable "nueMinutes"
Go to today screen, press gear.
Go to settings
Enter user name (phone number) and password for my sprint.
Go to data, press refresh.
Let me know if you encounter any problems, or any feature requests.