I've tested the pureview system against all sorts of cameras.. it can hang with most low to mid end cameras out there, and certain older DSLRs
Here is a little test I did againt a mid range P&S: C
anon SD 1200 .. its considered a decent cam by many
https://skydrive.live.com/pagenotfounderror
http://i.imgur.com/dQ7TIEE.jpg
Here is another one against my
Canon XTi
https://skydrive.live.com/pagenotfounderror
It does quite well against that as well.
Against another good P&S: C
anon G15
https://skydrive.live.com/pagenotfounderror
And here are some samples against one of the best P&S for sale at the moment, the
Sony RX100
https://skydrive.live.com/pagenotfounderror
And against something that is out of it's league.. the
Nikon D800, but if you down sample both to about 8Mpix, the difference diminishes.. the Nikon is still way better tho
http://sdrv.ms/17cThEv
There is no reason for the 1020 not to do just as well.. or at least close to it.
The 1020 is thinner, but it its bigger overall.. more volume
96.9cc vs. 95.5cc
Nokia Lumia 1020 vs. Nokia 808 PureView - GSMArena.com