Well I’ll be damned, someone has actually done it!

https://www.aut.bme.hu/portal/SymTorrent.aspx?lang=en

A fully featured bittorrent client for your s60 mobile!

I am giving this a go on my N95 8GB now!

UPDATE: This works well by the looks of things.

DISCLAIMER: I AM USING WIFI FOR TORRENTS, DO NOT USE YOUR GPRS / 3G / EDGE DATA SERVICE FOR TORRENTS UNLESS YOU WANT A HUGE BILL!