Happy Island is one of the first Facebook games we’ve seen move to Android, although this isn’t the game’s debut on a mobile device; there’s also an iPhone version available.
Both mobile versions were created by another venture incubated by CrowdStar chairman Peter Relan, called Sibblingz. Over time, Sibblingz intends to create a business out of making games work across multiple platforms.
For now, though, most Facebook developers are still waiting for proof that the mobile markets are big enough to work with their freemium model, while most mobile games remain on a paid model in Apple’s app store. Happy Island’s performance may offer a useful test-case for Sibblingz to show off — if it’s successful, which certainly hasn’t been the case for all social games ports to date.