RC,
I understand your enthousiasm and your anxiety my friend, but I really doubt that Porsche cares much about that poll.
You have to remember this is the internet and you've also experienced it the hard way.
My assumtion is of the 480 users who have voted, a good 3/4 have never driven a Porsche, and a majority are also young kids whose parents own or not a Porsche and there's nothing wrong with that, it's the internet, and as a result, it makes the poll hardly conclusive.
Also, on the users that are actually potential buyers, we are Rennteamers, which means we know how to drive, we know how to put the power down on the road (you'd hope so...) etc etc etc...
Most future Turbo buyers (or Porsche buyers for that matter), as Ocean wrote, only want their Porsche to say Turbo on the boot, don't care about power and will probably order their car with a Tiptronic transmission.
When the 996 Turbo came out, it had a wooping 30 hp LESS than the lastest of the previous generation (The 993 Turbo S)!
And yet went on to become the huge success we all know.
Then the competition showed up, they were all more powerful (575, SL55, Vanquish, etc.) and yet, Turbo sales were still strong.
I'm not speculating on the 997 Turbo, the more power the better (personally) but I am also aware that my type of buyer (the real amateur, the one that knows what he's driving) represents a pretty huge minority.
One thing I don't know is the Turbo's power figure. One thing I DO know is that even with 460 hp, it'll still be a huge success, trust me on that.
You and a few hundred Rennteamers might cancel their orders but that won't stop the thousands of others who only want to say they drive a Porsche 911 Turbo.
You aske them what it VGT and they'll ask you if it's an abreviation for vegetable fuel, I promise you, it'll be impressive if they know the power of their car!
And finally, another thing I do know for sure is that Porsche model line up is planned on a 10 year basis by the board of directors, so whatever the Turbo power figure is, is was decided probably about two or three years ago, I doubt one has any influence on it's power figure now.