It really depends on what you need the browser for and the level of inconvenience you can tolerate. Nearly all sites I am interested in I can still browse with the N900.
Of course if you expect the browser to be as fast as your desktop the N900 will be a disappointment.
biketool seems to be only depending on one site for his tablet use so by sharing the link to the site people might give alternatives (e.g. the first bus arrival prediction website presented by google https://thebuslive.com/ is working fine for me)