Integrating digital camera's into phone's was the best thing to ever happen, but you only realise this when it's a decent camera.
For a night out and random daily shots the camera in my N73 is great. My last phone with 2.1megapixels was adequate too. If I can manage to get a 5+mp next time I'll probably never bother with a seperate camera again.
I never want to take the one I have now out with me but my phone's always in my pocket.
If I was on a data tarif I'd probably be on MSN all the time, unfortunately I'm not so other than calls and a hell of a lot of texts I only really use it to demo the newest prerelease CDs I've got, my morning alarm clock, convertor, calulator and calendar.