To be honest, I didn't think about the similarities between the words. I named it that as an homage to the project's birthplace, a coffee shop named Foam Coffee and Beer.
And yet, people are getting the impression that this has something to do with Rick Santorum's frothy mix of you-know-what. I hope you find a more serious-sounding name soon, before you take whatever the next major step in your project is. What about foamauth? You could argue that it makes the traditional login form disappear into foam, or something like that :)