in my opinion, best phone of 2011 would be the Nokia N9, a "work of art" both hardware and software, that Nokia had to use its form factor in its windows phone lumia 800, even the guys from engadget gave it praise, thats pretty awesome.
best app would be whatsApp, why? you wouldn't see a nokia phone without it, its simply a must-have, the bbm of non-blackberry phone, works on all platforms too!
best pic taken? all the pics in this category are awesome, its hard to choose!
nokia-produced video? for me would be gulp, simply because it shows how great the Nokia N8's camera is.
best user-generated video? the videos in this category are fun and high quality, i like "lapsed" best though.
community ambassador? most inspirational contributor to the community? i would have to say Jay Montano from MyNokiaBlog, you can't be anymore dedicated and passionate than that, kudos to him, hope he wins this!
if you haven't voted, have fun, vote, there are prizes up for grabs (nokia play 360 wireless speakers, trip to Nokia HQ in finland).