Hash algo is changed from scrypt(1024, 1, 1) to scrypt(N, 1, 1).
What about
scrypt(N, 4, 1) to make it even more CPU-friendly?
Using scrypt(N, 1, 1) means that only solo cpu mining will work until someone will fork mining pool software or implement GPU miner. All existing miners aren't compatible.
Won't really work. It will take only a day to write GPU miner.
Why not scrypt(N, N, N)? There must be a cleverer way to determine each of the parameters than arbitrary numbers.