Why you should not host from a DSL connection
There are may reasons why this is a bad idea, as already mentioned, however here is a compelling reason why your customers will never get good connection speeds from your setup.
As we are developing some applications around networking products, particulary Packeteer PacketShapers, I have had a shaper connected to our LAN over the last few hours and all outbound traffic to the Internet has been flowing through the Shaper via a 500K ADSL connection (BT OpenWorld). As I have been the only person using the Internet connection, the traffic has just come from my usage of the net over that time.
The attached graph shows the network efficiency of the DSL link, and it is frightening how badly these links perform, as you can see. Having even a small number of concurrent users using this link would cause major contention and TCP re-transmission issues - resulting in your startup remaining just that!
