Wow! I'm happy to find this site as well! I've got a 1980 Y-36 that I've owned since new, and had a 33' before that.Looking forward to exchanging info!
Download it here. The app is searchable in the Google Play Store under Sailboat Owners.
Sorry iPhone/iPad users, we are still waiting on Apple. :(Click the X in the upper right corner to make this go away