No problems here
I got one of the first MacBook Pros that came off the line and I honestly haven't had an issue with it. I don't see flickering, whining, or any of the other "problems" that people are seeing. I'm completely satisfied with my purchase. I actually think that, because I put in such an early pre-order, that when I upgraded to the 2.16 GHz Core Duo they decided to ship it early. Hell, I wasn't complaining. I dropped the bucks and I got the good treatment.
It worries me a bit that there are revisions already, though. It's common to change various component providers, etc... though I don't know how common it is to have an update to fix a quality issue. I guess it's moot though-- I don't have the symptoms.
On a brighter note, a friend of mine in charge of purchasing decisions for a small Agency has now purchased 4 new MacBook Pro's (and they're loving them) and is already using xServes, G5 PowerMacs, and G4 PowerBooks. Amazing, considering that in a 10 or 12 person company that roughly 60% are using Macs in a place that also does software development. He used to dislike Macs and now he's recommending and buying them for his company.
My girlfriend works in a talent agency and their entire office are iBooks. It's amazing, but the tides are turning. I never used to see that in businesses who's primary task was not science, law, or graphics.
I also have a lot of friends who have purchased their first mac in the past 3 months due to the Intel transition. Maybe it's a mental thing but I know they all consider it a more solid purchase since they knew the OS was better, the packaged software was better, and the speed was ... is ... the same now.
Bottom line-- the Intel transition is making a *significant* number of people in my circle, both professionally and personally, purchase more Macs than ever. It's now to the point where the PC using people are in the minority and, believe it or not, all I do is show them the hardware and software. I don't even get preachy. They love their ipod, they see Intel on the new Macs, they secretly love OS X, and NOW they buy.