Are you serious?
eV
I don't have a 17" MBP. The only MBP I can compare my rev B MBA to is a v 2,2 15" MBP (originally $2499) with 2.33 GHz C2D, 256 MB dedicated graphics RAM, 7200 RPM HDD and 4 GB RAM. Also use against 2.4 GHz Unibody Aluminum MB with 4 GB 1066 MHz RAM and 7200 RPM HDD. The unibody MB seems to do most things about same speed as MBP.
My SSD rev B MBA with 1.86 GHz C2D is FASTER than the MBP. However, overall speed feels or seems to be faster in MBA because boot speed is incredibly fast and apps and files open instantly with the SSD. I am certain via CPU computation, the MBP has to be faster (as does the 2.4 GHz MB), but you would never know it by using the MBA. I don't ever spend time waiting on the CPU actually. So, it's not that the MBA doesn't have a fully capable CPU especially having 6 MB L2 cache.
Supposedly, the SSD in the new 17" MBP is limited compared to others available on the market that fit in the 17" MBP which uses a SATA SSD.
However, I am certain the 17" MBP, with an average SSD SHOULD run
much faster than a MacBook Air. The ONLY thing that makes my rev B MBA seem like my fastest Mac ever is the SSD. I would assume the 17" MBP to be on a completely different scale and not comparable in a fair manner as the two have completely opposite purposes (to me). I don't think a 17" MBP is truly portable. Yes, the 17" MBP is extremely powerful but most buyers are completely different users then those who would buy a MacBook Air. Display size, component quality, resolution, capabilities, power, batter life, and etc are all easily WON by the 17" MBP in heads up comparison. The ONLY thing the MBA would score better on is portability. It's the extremely thin, light and portable shell that makes us all want the MBA... But a real "professional" user needs higher resolution, more power, and etc which is offered by the 17" MBP.
Two completely different markets in my opinion. If you want to compare, it all comes down to do you want portability or display size and power? You cannot have both as the MBA CPU is only 60% as fast as MBP. The RAM capability is only 25%. The resolution and display size offers has a much smaller working area in MBA. The graphics in MBA are nice, but cannot do graphics intensive work like dedicated and dual graphics of MBP.
The thing is
most MBP owners do NOT need power, but rather they want a 15" or 17" display and the only option is "Pro" for those buyers.