Ouch. What would that cost for the bandwidth?
I looked into using cloud instances for file sharing (legal files, of course) and decided it would cost too much for what it was worth to me.
I'm surprised home routers don't have bittorrent clients built in. I expect most people leave them on 24/7 as it is.
That's cool.
I did the same thing for Minecraft SMP (passing 512M instead of 1024M for memory usage).
This is cool, you could also use S3 to help you seed if you don't want to keep your computer on all the time. S3 allows you to use torrents by adding ?torrent to the end of your urls. The data transfer is treated the same as regular S3 data access.
Your safest and cheapest bet is to get a seedbox in France. http://dediseedbox.com
This is a cool idea, but if I used it with the amount of data I use at home, I would be spending upwards of $500 a month.
recently discovered aria2c, it's an excellent client for bittorrents files, would be run great on any EC2 instance.
IMHO, Exactly this kind of abuse is something will lead to closing evaluation period provider by amazon.
The only thing I would ever use this for would be legal files shared with friends - I'm not sure how often Amazon ripples their IP addresses, but I'm sure the RIAA/MPAA would have a field day with an IP address linked to a billing account in the US.