Alright so they have something like Xbox Live. And you say it's 2x more powerful than the Xbox 360. Well in terms of teraflops yes it is more powerful (although not quite 2x):

However, the PS3's GPU is slightly less powerful than the 360's GPU:

The Xbox 360 also has way more general processing power:

And for system bandwidth, the Xbox 360 totally beats the PS3 to the ground:
ConclusionWhen you break down the numbers, Xbox 360 has provably more performance than PS3. Keep in mind that Sony has
a track record of over promising and under delivering on technical performance. The truth is that both systems pack a lot of power for high definition games and entertainment.
However, hardware performance, while important, is only a third of the puzzle. Xbox 360 is a fusion of hardware, software and services. Without the software and services to power it, even the most powerful hardware becomes inconsequential. Xbox 360 games-by leveraging cutting-edge hardware, software, and services-will outperform the PlayStation 3.
Solid evidence Xbox 360 > PS3
waaa i better get xbox360 then..
or i will get xbox360 end of this year...