I can't say I'm impressed. The two tone colour scheme doesn't really appeal to me (at least not in that configuration). The older model was more attractive.
It still doesn't support next generation optical drives, it still has no media card reader and the LED screen is still just 1440 x 900. Their isn't any HDMI output either, and just two USB ports.
The environmental considerations are great, but overall a disappointing upgrade.
Most people don't need an HDMI output. DVI is the typical monitor connection. It makes more sense on a laptop to use the typical connection as opposed to one that only technophiles would use.
A 15" LCD (not LED) that goes to 1440x900 is pretty typical admittedly. They could have went one step up to the 1680 x 1050. But this probably would have increased the price point quite alot.
Two USB ports on a notebook is fine. When your going out and about with it normally people would use say an external mouse and a memory stick. Other wise you can just use a USB hub. Which are quite compact if you really need one travelling.
However there are a lot of bonuses to buying a Macbook pro compared to these so-called negatives. The only real negative was the screen size but you can go 17" if that's a deal breaker for you.
On the positive you have:
2 or 4 gig DDR3 memory
VIDIA GeForce 9600M and a NVIDIA GeForce 9400M graphics processor (yes two graphics cards)
High bus speed on all components(memory,processor,graphics)
6mb l2 cache on the 2.54ghz model
plus the new OSX has native multiprocessor support. This means your applications don't have to manage the processors and the OS does it for you.
I run Vista on two machines at home ( one desktop and one laptop) and OSX at work (dual quad core baby! ) and find both perform well. I use photoshop, flash, word, email, Dreamweaver, firefox, itunes or winamp, ftp all at the same time with no problems on either system.
In a laptop purchase I would consider the Mac as it's usually much more compact than those its comparable to.