To install the Skydeck sync application on your phone, just go to http://m.skydeck.com/ from your mobile browser. Once the application is installed, the browser will launch so you can create an account or login (if you already have an account).
Alternatively, you can install Skydeck from the Android Marketplace, BlackBerry App World, of iPhone Appstore on your phone. Just search for ‘Skydeck’.