Leosghost - 5:01 pm on Oct 5, 2012 (gmt 0)
Search on mobile ( without even getting into Siri and Google's own offering that pre-dates Siri) is a whole different animal and layout ..
Even on a 480x800 screen phone..G SERPs mostly consist of just 3 text results..or 1 text result with 3 images ( laid out as two side by side with another one below )..there are some more results per page, but they are "below the fold" and thus "off screen" ..people are lazy ..they don't scroll SERPs..
Although some of them do scroll some webpages..
On mobile phone search..if you are not in the top 3 spots..or if the result has images at number 2 and you are not at #1..
You may as well be dead..and sending 404s..
Then there is the matter of what your site behaves like when / if you do get "the visitor"..
But the most important is to be in top 3 on SERPs or #1 and with an image thumbnail leading to your site..
Plus like jimbeetle says ..they are not there to read your college thesis..they want answers..short, clear, and images..videos..not 2000 words of copy..