Traditional sig-based AV is dead

Maybe not (yet)..but its worth to mention that some AVs are starting to give up the traditional way of virus scanning and moving towards "cloud-based" threat scanning:

First, TMI's Smart Protection:
- http://trendmicro.mediaroom.com/index.php?s=43&item=642

Then, Panda has the so called Collective Intelligence approach:
- http://research.pandasecurity.com/blogs/images/wp_pb_collective_intelligence.pdf

And just recently, even academic sector also believes to the "in-the-cloud" strategy:
- http://blogs.zdnet.com/emergingtech/?p=1008

I wont be surprised if other vendors would follow the steps :-)