I thought this data would interest some people as it touches on the topic immediately above. This is the ComScore MobiLens research and is the most current info for Europe, the market that's closest to NZ in habits. As far as I can tell, there's no NZ-specific data available unless you pay for it. The figures represent the proportion of smartphone users engaging in those activities and cover the most recently analysed quarter.
Photography - 57.5%
Social networking - 18.0%
Gaming - 25.3%
Recording video - 26.1%
Listening to music - 25.0%
Watching TV and/or video - 5.7%
The TV/Video numbers are significantly lower than the other activities. I don't have numbers for the previous quarters so I don't know how it's trending, but in my estimation, it'll be growing.