I wouldn't call a machine with
"only" more horsepower than the last gen a revolution.
There's actually a machine whose codename was Revolution, and which really is a revolution, and that's the Wii.
Note before idiots comes in : I'm not a Nintendo fanboy, I just like their games, hence the need for a Wii, and I'll buy a PS3 soon enough (MGS4 and SCIV
)