1Ghz CPU, ours has a 600Mhz, which is underclocked to 550.
512Mb of mem, 256 for us, could be moot anyway in terms of apps running from SD, supposedly being addressed for a future update.
My point from what I read is that we have a CPU and GPU, the N1's CPU does both, that could make them equal in performance.
N1 screen OLED, less power draw, however we'll see how adobe F**ks up the OS on both for power draw with flash.
Lastly, as others have posted, they have ported the screens over and they work briefly, but because it isn't optimized for our hardware, it's hit or miss, but the fact they do run means you will see them.