Anyway, one of the greatest limiting factors in photo quality is light transmission. You simply need larger apertures to allow in more light. And with larger apertures come larger lenses and larger sensors. This is why DSLRs make such vastly better photos than point-and-shoots or cell phones. Unfortunately for those that want professional quality in their pocket, it's just not possible. Size is absolutely necessary. It was true in the film days, and it's true in the digital days.
I saw the recent article about the LG phone with an f/1.8 maximum aperture. Awesome, that's a step in the right direction, but "f/1.8" on a cell phone is not the same as f/1.8 on an SLR lens. That aperture measurement is a ratio calculated against the size of the rear element of the lens. So, f/1.8 sounds great, but because the lens is so tiny, so is the aperture, and that still means terrible light transmission.
It's like fighting fires with a garden hose vs. a fire hose. The sheer size of the hose allows more water flow, and gets you better results. Light works the same way. You simply need more light to make better photographs. And more light is something only size can provide.