A phone camera forum would probably be busier than a few of the camera forums here.
Busy discussing what? The latest and greatest Nokia N8 only has an EC function for exposure. Nearly every other camera phone in existence is 100% automatic. Are you going to discuss techniques for pointing a camera phone? (At least the Fisher Price cameras have viewfinders!)
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By your logic we should just close all the camera forums here. I mean really, what the heck are you going to be "discussing" exactly about dslr's? They all get nearly the same image quality. If you want quality reviews read the official dpreview review. Otherwise, what are you going to talk about? More "oh god my dslr makes me so much awesomer at photography than everyone else? More "I blew this picture up to 200%, and I can see this tiny bit of detail in one dslr that I can't see in the comparison shot from the other" talk? Hey, maybe we can have another pointless discussion about how some people think their manhood is threatened because the latest Canon dslr doesn't have the magnesium body they wanted, which has no real effect on durability whatsoever. I mean people went on, and on, and on, and on about it, something that is sooooooo completely trivial.
People in a cameraphone forum are going to talk about the same things that people in the other forums are going to talk about.