Oh and I almost forget, even though they said they weren't merge mining, they were in fact merge mining namecoins and keeping them all for themselves!
I strongly suspect most pools that have dropped merged Namecoin mining are still mining them and keeping them for themselves. If you go and ask some pool admin why they stopped merged mining Namecoins, the standard reply will invariably be "because it's a PITA (a pain in the ass)". People who mined for a while on Eclipse are having to
individually send a request to Inaba to withdraw their Namecoins, because he removed the Namecoin stats from the dashboard so we can't even check if we had any balance. Used to be my favorite pool, now I won't touch it with a ten foot pole.
That being said, I'd go with
Bitparking where, like pool admin
doublec said above, you mine Bitcoin, Namecoin and two other alt currencies at the same time, among other nice features. Interestingly enough,
doublec doesn't seem to be having problems keeping all the merged mining going...