it's not just kimoto gravity we need to repel profit switching pools either putting adaptive N or something that puts profit switching polls stratum in limbo during a huge spike in hashrate...
Some profit swtich pools are implemented multiport swtich for the N coins, look
https://pool.trademybit.com/but they have different stratum for adaptive N and there is only Panda and Vertcoin, because it still needs a specific miner to mine it.
what adaptive N was for is to prevent normal scrypt pools from just jumping with gigahash of hashpower to it, which currently 99% of altcoins are vulnerable to...