Fennec is not bad, but it is useless for the N900. It requires far too much RAM to be useable. It is the Swap usage that makes it slow. I wish the N900 had more RAM

I switched to Opera as my main browser. Sure it has its quirks, like no flash, and MicroB has a better interface and rendering (IMO), but it is not resourceful at all. Opera is fast and while using it I don't have to reboot daily. MicroB uses quite some RAM too, which ends up to Swap, which then for some reason slows Maemo a lot in the long run.