[jiggy2011]

I haven't done the math but I'm guessing that with a popular game the costs of hardware and hiring someone to do server management would be wiped out by EC2 costs pretty quickly.

Not sure how spikey game traffic is, but it would seem unlikely that your game is super popular for a day and then drops right off the next as would be the case for many websites.

For example if your game business model is charging some nominal fee per month (say $10) you might find that heavy players can burn through way more than $10 worth of EC2 traffic in a month.

Anyone know if any popular games are hosted on EC2?

[thejosh]

Doesn't Sony Japan or Amiga Japan use EC2 for their Playstation 3 servers?

[jiggy2011]

Not sure, though I think the Sony servers are simply used for matchmaking and authentication services and do not actually host most of the games themselves, that is delegated to consoles.