exe should add stake, that's what is most popular right now. i like the pow/pos hybrids such as hobonickels. they don't have huge hashrates and survive with stable prices. if exe were to shift it would be one of the only to use scrypt-n. just an idea.
hmmm, ps is just the latest flavor of p&d, we don't want that, slow and steady growth and merchant adoption is the key, people will start getting sick of loosing money and start supporting good coins(hopefully)