It would be awesome if one could choose how and where to be notified. For instance, in the past when I was synchronising manually, I disabled the Lotus Notes notification. I only had the Google Calendar sms notification. Now, in order to get the sms notification, I had to re-activate the option to be reminded of meetings in Lotus Notes. This results into (15 minutes prior to meetings) having:
- one reminder popup from Lotus Notes
- one reminder popup from Google Calendar
- one reminder sms from Google Calendar
 
It would be very cool if I could select to be notified by sms from Google Calendar only but I am not sure whether that is a reasonable feature request since other people might want numerous other combinations and it would lead to an overhead in the options (?)