try installing Firefox, and browser-switchboard to make it the default browser.

It has brought browsing right up to date on my N810, seems to be quicker than the default browser, and has tabs, location detection for google maps etc, and can sync passwords and bookmarks with firefox on a PC via weave.

I have also installed the frediablo theme to make diablo look a bit more like Maemo5. The dark theme alone gives it a fresher feel.