My theory on why people keep saying that the MBP looks like a PC laptop is the following...I own one of those HP laptops and have never noticed ANY resemblence to the MBP. If anything the new HP ENVY laptops are trying to look like MBP's.
First, there was the Titanium PB, silver with black keys.
Then came the all-silver PowerBooks.
Meanwhile, PCs that copied the original Titanium PB started emerging. The Dell Inspiron 6000, a couple of ASUS laptops, and others. This was the paradigm shift where PC laptops went from uniformly black to various other colors, often 2-color schemes.
Since these PCs, the Dell 6000 in particular, were extremely popular and more widespread than Macs, silver/black became a familiar PC look, disassociated from Macs since they were all-silver.
So then, when Apple decided to go back to black keyboards on silver (this started with the MBA, not the MBP), the black/silver combo had come full circle on the Mac side of things, but from a PC-centric perspective it looked like Apple had taken a leaf out of Dell's book. Of course the physical proportions, materials and other things are radically different, but that's another story.
I don't get that either. Over time, Apple has moved on to aluminum on pretty much all products, the computers, the iPods, even the Remote. Chrome and plastic is gone from all products except the 3GS, which IMO looks more like a predecessor to the original iPhone than a successor. Black/white plastic+chrome is Apple five years ago. And now that they're finally bringing the iPhone into the metal+glossy black family, consistent with the other mobile products, it's "so un-Apple"? Huh?It barely looks any more "square" than the current iPhone unless your talking about the back mirroring the front. I really don't get people thinking this doesn't look apple like! If anything the 3Gs looks un-apple like.