Eric and I talked about whether there would ever be a market for geek romance novels. Our verdict was no, but only once we got past some prejudices about what the term "romance novel" really means, beyond "trashy cover, awful words for sex, plot revolving around fake misunderstandings and sex scenes," and what "book with strong focus on non-romantic relationship" would be called (mainstream, we suppose). The market would probably be mainly geek women, which is sadly too small a slice of the population to be commercially feasible. Eric says it might also garner a following in teen fiction, but I thought it would make more sense in adult, since more people will admit to geekery in adulthood than teendom.
But we decided the subgenre could spawn some awesome book covers. Picture a man in a labcoat, baring his white chest, hints of a calculator peeking from behind the edge of the coat, and Star Trek boxers.