IIRC Twin Skies was pretty neat. The Salabounder was cool. But
http://www.twinskies.com/ is about all that's left of it
VPN lasted somewhat longer and had a bigger following, but it went >poof<, too.
Their (Adam & Donna's) latest venture is
Island Paradise, which is indeed Facebook only. As I don't have a facebook account, I have never bothered to try it.
Not that the previous two experiences didn't leave me a bit gunshy...