The funniest part is greasemonkey and filterset P are actually pretty useless for the real reason I needed ad blocking. On a low bandwidth connection actually having to download all the ads is the biggest problem and unfortunately any greasemonkey script built to hide ads does just that. Hide them from view. You still have to download them in the first place. Yes It'll help stop an ad ridden page from grinding the N800 to a halt but it's only a small consolation when it still takes an age to download the page in the first place.

I think what I'd like to see (Apart from a real adblock extension to microb) is something akin to how Opera Mini works on mobile phones where you can run through a special proxy that basically makes everything take less time to download. Opera Mini does this very well indeed on mobile phones and would make a nice (optional) addition to a handheld of this nature.

Interesting topic though and this adfilter script will come in handy but it's just not a complete enough solution sadly.