One thing everyone is over looking is the ability for anyone on here that's on a 3G network to create basic user accounts for other folks giving them ssh access to their N900, then the users in China could setup ssh tunnels to the phones using something like putty (if they're on windows) and then point their browsers to the locally opened ports and viola! Browsing the internet through someone else's 3G connection.

Just have to use a little imagination is all.