Google Instant impact on SEO or PPC?

I just want to discuss "Will there be any sort of impact of Google Instant on SEO/PPC?"...Will Google instant proves to be positive or negative?

 

In my opinion users will be lazy to type long queries watching instant results. So traffic from google will shift to most general queries rather than "long-tail" queries.

 

I don't think there would be an impact to that.. think it still is the same despite the google instant..

 

I also think that it will stay the same..

 

That's almost certainly what will happen. I see Google weeding out long tail 'spam' sites anyway - this is just one more nail in the long tail coffin...