> users ARE interested to see the wild wild web through
  > their browsers, even porn, but it is the vendors of these
  > closed gardens that have made it difficult for everyone

They can do. Fire away mobile safari and browse whatever you want.

  > This discussion is meant specifically for browsers supplied on
  > iPad/Android tablets

Then this is so wrong. Take a look where the first appearance of <canvas>, hardware accelerated CSS transforms and animations took place.