Smartphone cameras have greatly improved in a short period, going from a convenient last resort to something most people use as their first option. There's always room for improvement, though, and Google's Vic Gundotra, senior vice president of engineering, says the company's Nexus line might become "insanely great."

In a discussion about DSLRs and the cumbersome nature of lugging equipment and lenses, one user dreamt of a future scenario when Nexus devices could replace professional-grade gear. That might happen soon, or at least we'll edge toward that.

Gundotra didn't reveal any specifics about what he meant by insanely great, but his optimism certainly has us interested, particularly because Motorola's alleged X phone will supposedly be so killer. "Just you wait and see," Gundotra said.

While manufacturers keep trying to outdo each other with bigger screens and specs, it seems the focus is slowly gearing toward better cameras. Sure, megapixels have been ramped up in the last couple of years, but with technology like PureView, and HTC's mysterious improvements coming this year, we're starting to see sensors and optics noticeably improve.

Enough to replace professional DSLRs? Not a chance. We'll have to wait and see what Gundotra meant by "insanely great" when Google kicks off its I/O conference in May, where we presume the search giant will unveil a much-improved Nexus camera.