Just a thought that's flitted by while I'm sitting here. For two player gaming in an area where there is only modem connectivity, would dialling the other player direct give better network performance than via their respective ISPs? Obviously dial-in speed would be restricted to the analog 33.6k transfer rates with your average modem but I would assume you would traverse less network segments and thus latency would reduce? I'm not familiar with how the telcos route their phone and data traffic so I don't know if you would realise a benefit.