Twittercal. Tweet your Google Calendar
At first I thought, why do I need this? Then I did. Someone called and we sent up an appointment, but I wasn’t near a computer to record the appointment in Google Calendar. Now, using Twitter and Twittercal, I can do it on my cell phone.
Setting it up is easy/ On Twitter, follow GCal. Then go to Twittercal and enter your Twitter name and Google email address. To add an event to the calendar, send a direct message to GCal, like “d gcal tomorrow 12:30pm lunch with John.” That’s it!

