Glad to see some genuine interest in my topic!
Might want to check out MUE. Good dev, good philosophy, launched with no hype and with slow steady growth. Right now the GPU implementation of Quark algo gives GPU's about a 10:1 advantage (on my machine, 7970+R9-290 on an FX-8350). I think that's about the closest we've got right now to a GPU/CPU hybrid.
The best CPU/GPU hybrid right now would be Monero (XMR) with cryptonight algo, which is a "big" coin. The advantage is 2,3x for the GPU.
There is also scrypt-chacha, than can be adjusted to be CPU/GPU or CPU only (though some specialized hardware could still be created).
I was proposing a cryptonote fork (like xmr), where we would also fix the recent security issues found with xmr, and use scrypt-chacha instead of cryptonight.
And use the inflationary coin distribution I proposed.
In the usual bitcoin model, that all coins now use, the biggest reward goes to the users who mined it FIRST. The advantage of this approach is for advertising. It was good for bitcoin, because there wasn't a cryptocoin community at that time, so this kind of incentive was necessary. However, we can see it fail for altcoins, one after another, effectively turning all of them into ponzi schemes.
So essentially, an altcoin should reward the hashpower, not being there first. I think it makes a lot more sense, and it actually does encourage the coin to grow to millions of users. This is what we need now!
If I have some supporters, I will write the code.