We're researching content delivery systems for Phoenix. We'd like to get opinions from everyone.

I don't use one but I saw Steam for the first time yesterday and it looks awesome.

i dont use one either, though the quickest way to spread a title seems to be just dump it on a torrent site and just take the monthly subscription fees
i think WOW quietly uses a torrent based system anyway

For us, the best thing about a content delivery system is patching and new content rollouts. We can deploy new versions of Phoenix to the delivery system, and everyone who has the game gets the patches automatically. We wouldn't need to manage revisions, keep every patch ever produced, etc.

that's what i mean with the suggestion on the wow thing about using a torrent based technology system would allow you to create an update or patch place it on one location and then the client side version tracking updater system will grab it from your server, but also as basing it on a torrent system would then mean as more people log in an their clients go for the new data files, the download is also shared amongst the users own bandwidth saving you own
and the client bandwidth used would be set to say 10% of their total isp provision..
SOE have the option to allow quiet updates, so you download the new client files whilst playing the game before the new update goes fully live also saving on the time players wait whilst new patches are provided...
a combination of the above torrent share between clients whilst logged into the game to allow such in advance patches would possibly provide for an almost invisible upgrade path to the users.

FilePlanet? When Im looking to beta test new games, I usually look here first for invitations.