http://www.androidcentral.com/sunrise-calendar-app-comes-android
When All My Notes was on GOTD the other day the lack of connectivity was mentioned. Sunrise "plugs into multiple services, like Facebook, Foursquare, and LinkedIn, as well as your multiple Google Calendars..." Also "Previous Foursquare check-ins populate days past, and birthdays pull in Facebook profile pictures. A strong web app ensures you can keep on top of things from your browser as well."