Of course it doesn't have pentile, the res. is low enough to allow that
When the N9 1st came out even Samsung didn't have SAMOLED+ (non-pentile SAMOLED) phones w/resolutions higher than the N9.*
Hmm FF cam looks slightly worse than N9's, but at least it'll prolly work out-of-the-box

Distinct hw advantages I can see so far:

*4.3" Display (AMOLED CBD non-pentile, is this 100% confirmed?)
Debatable whether this is a huge advantage considering poor res/PPI, but non-pentile's pretty big.
*LTE
Again debatable whether this is huge, but it's def. one of the two distinct advantages.

Possible:
*Gyroscope
I can't recall if N9 has, pretty sure it does.
*2 Microphones
Ditto....
*Front: 1mp, 1280 x 720p, f2.4 lens and 30fps capture
N9 is 1.3MP, but can't recall if it's specc'd like that in red.
*Battery: BP-6EW 1830mAh
Remains to be seen how this plays out in real-world usage.
*All Day Life: Upto 7-h talk time, 300-h stand-by time, music 60-h, video 6.5-h
Ditto....

Unknown:
*NFC
Is it really as sophisticated as the N9's NFC support, WP doesn't have the right kind of support?
*802.11an
No 802.11an for 900 right?

There's several areas the N9's still better, not overly impressed so far.
Non-pentile screen is a "biggy" if that's true.
We should get that on revised N9's else we're being somewhat screwed.
The panel tech should allow it for the N9's res. now.

*although IIRC there was one or two Motorola's.