Shifty Geezer said:No. On Live! some services like messenging and content like demo's are free. Other content like extra levels or games or armour for your horse costs money. Online gaming requires a subscription to MS, and in some cases a subscription to the game, such as MMOs.
On PS3's service, as it's been explained (and presumably subject to change), access to services like messenging and demo downloads would be free. Other content like extra levels or games or head scarfs for your avatar would cost money. Online gaming would also be free except in some cases where a subscription to the game is required by the develop, such as MMOs.
eg. On PS2 you could play CON or SOCOM for free online, or pay a subscription to play FFXI. On PC you could play GW or NWN for free, or pay a subscription to play WOW. You also don't have to pay to play DS or PSP games online. On Live!, you have to pay a monthly or annual subscription to play any online games save some free weekends and other promos, and I think there it's unique.
To be more precise, it is up to the developers (more likely the publishers) what content is free and which content costs on Xbox Live, regardless of whether it adds to gameplay or not. I'm not sure what the split between content that costs money and that which is free, but there is a plethora of non-gaming free content, and more than a handful of gaming/gameplay related free content. But then there's also, Horse Armor
Online multiplayer gaming is in fact a subscription for the MSFT platforms. But I think there is a reason that every time someone asks a Sony rep about their online plans the word "Basic" appears within moments of mentioning "free", that is not unintentional, I'm sure we'll here more at TGS.
As far as MMOs on the 360, my friend merely uses the subscription he had for the PC version of Final Fantasy.
On a bitter side-note, I would gladly pay to have a much better online experience for DS online gaming...gladly. WPA would have been nice as well. I can't speak for the PSP yet, but I may be picking one up soon, I need to get a second DS Lite first, hopefully, its better than N*s method.