Which spreadsheet would this be?
This one:https://docs.google.com/spreadsheet/ccc ... nVWZmFKZ1E
It's now been updated with all the current rates and packages as of 2/19/2012 onward. Let me know if you see any issues.
Note also there's a handy chart in a second tab on the bottom, showing graphically the three examples and the five package options, and cost per month over months 1-12, 13-24 and 24th onward (though after 24 months there is no contract, so there could be additional rate changes.)