Google Calendar is yet another free great service offered by Google. Multiple calendars can be created, and can even be shared by multiple users.
What got me excited was the SMS notifications feature. You can get notified about any event, on your mobile phone, via text messages. By default, the SMS is received 10 minutes before the start time of the event. However Google Calendar gives you the option to select a different notification time for each event (from 5 minutes up to 1 week).
The answer to “…and how much does this cost?” is:
Google Calendar is a free service and Google doesn’t charge you to receive notifications. Please keep in mind that if you’re in the US or Canada, your mobile service provider’s standard rate for receiving text messages may apply. If you have any questions about the rate, please contact your operator for more information.