Still running torrents over wifi is a big no-no (at least for me). It puts a lot of pressure on the wifi module inside n900 and wifi router. Also, n900 is a portable device and you won't have internet connection all time. Of course you can run it over GPRS/EDGE/etc, but I don't think there is an operator that will allow you to download hundreds of Gigabytes of data(even on unlimited packages).