Scrypt based merged mining pools Does anyone know why there are no Scrypt based merged mining pools out their yet? I would imagine that if it was possible it would have been done already. There is no problem to do it with SHA-256 based coins, so why can't we do it with Scrypt?
Found a helpful post at litecointalk:


  It won't work because the aux work must be explicitly provided by the merge coin.  All of these coins cloned from Litecoin lack that code as Litecoin doesn't have it.  As a result you cannot merge mine these coins.
  
  It is the same reason you can't merge mine Terracoin or Freicoin with Bitcoin.  Freicoin considered it in the past as means to stabilize their network, but I'm guessing they decided against it because they are afraid of their value collapsing even more.  Trouble is none of the small PoW coins are able to maintain a stable network if they are subject to sudden reorg attacks at any moment as many of the scrypt clone networks often experience.  Thus avoiding merge coins to preserve "value" is illusory and self-defeating.


Also, apparently there is a scrypt coin designed for merged mining with Litecoin called UnitedScryptCoin, though I didn't have a chance to try it yet. Link to UnitedScryptCoin thread in bitcointalk.