Save for the odd place like Berghain, phones in clubs/raves/whatever is part of the norm. So be it. I personally don't see the need to take more than a photo or two, and would much rather just dance for hours and actually do something rather than filming others doing something. This applies to other facets of life outside of clubs, too.
At Amnesia the other week, however, what ticked me off a bit was when people were filming with the bloody light on their phone. I've been to plenty of clubs, and people are going to film bits here and there (or the whole thing). Whatever. But the cell phone light? Hey, thanks for washing out the ambiance of the dark room for 2 minutes at a time. Didn't pay 50 euros for your lightshow.
Agree with the general sentiment from most about the texters/modern socially awkward that feel compelled to be on their phone at all times; It isn't a textfloor, it's a dance floor. Not really apologetic if I bump into you while you're WhatsApping/Facebooking/Texting/App browsing (the latter is shockingly common) on the dance floor. Was in Vancouver, BC this weekend, and the gobs of people just standing around texting does affect the vibe of the place. Doesn't stop me from having fun in the end, but come on people live a little.