A year ago, Google enabled read-only access to your Google Spreadsheets from your mobile browser. Now the Google Docs team has added editing capabilities to Google Spreadsheets from popular phones, including the iPhone and Android phone. The excitement you feel at this announcement probably depends on how big of a spreadsheet junkie you are. For example I love the idea of tracking expenses from my phone using one of the many personal finance templates available at the Google Docs template gallery—but I was born at least a quarter spreadsheet junkie. If you've got your own killer use for a little spreadsheet editing on your mobile device, let's hear it in the comments.