When you take into account servers and Android OS, I'd say Linux has been fairly successful. There are large numbers of people using it without even realizing it (or caring). Bitcoin can achieve a similar success.
Also don't forget OSX and iOS are both based on the Linux kernel.
I thought it was BSD
I stand corrected. Still, while MS has been busy monopolizing the desktop, *nix begat the preferred mobile platforms. Believe me, I hope Bitcoin gets popular support soon, as that would quickly increase the value of my BTC. However if that doesn't happen now, BTC could still become big later, perhaps in some application no one has even thought of yet.