Like probably everyone else in the world, I’ve worked in a company that was hampered by inefficient spreadsheet mailing. I’m sure that many geeks other than myself have tried to come up with solutions to this problem. The Google Spreadsheet announcement is not a big surprise, and I think it makes a lot of sense. It’s hard to get people to change, and people are used to making spreadsheets, even when they’re not the “right” tool for the job.
The one thing that I think many will question is how sensitive of data they’re willing to put up on Google. Of course, thousands trust Salesforce.com with their pre-sales data, which is quite sensitive information. It’ll be an interesting psychology experiment to see how Google Spreadsheet gets used.