[adraper]

We don't ever actually touch any of your calendar events except to display them in the extension. The 'spam' bit only occurs if you create a new event and invite people - really sorry about that, you can turn that off in the settings, we'll very likely turn that off by default in the next release.

Feel free to email us any feedback, our goal's to make this as awesome as possible, not to screw with your calendar!

[jph]

Your app is doing something worse than you think-- after I uninstall it, every one of my calendar events still has the Gijit signature line in the description area.

My UX suggestion is tread carefully when you're within someone's pre-existing content, doubly-carefully when it's email, calendaring, and docs that may involve their colleagues and clients.

I'm on Chrome + Ubuntu 12 in case that's useful for your debugging.