Anyone think we should put together a community bounty fund for an improved GPU miner?
I'd rather pay for a true CPU only solution.
Impossible. What you CAN do, is make GPU simply not worth it. But it's a really stupid idea - botnets will then dominate the hashrate if your coin has any value.
EDIT: Shit, what am I saying, I'm better at CPU dev than GPU dev. Disregard my last.

Please explain to me why CPU mining is prone to botnet subversion but GPU or ASIC mining is magically not.
If it's connected to the internet, it's hackable. CPU/GPU/ASIC makes no damn difference. If an attacker has control of your box, and your mining software, then they have control of your mining hardware too whatever that might be.
Exactly.
Also what I never understood is.... yeah I understand it's possible that someone makes my pc his bot and makes it spread emails or malware, without me noticing it immediately. Ok, get it.
But how is he going to let my pc CPU mine without me noticing the higher temperature, the higher noise the fans are going to make, and the general slowliness that will make me wonder
immediately what's going on with my pc?
Id assume a bot-net would go for large offices/companies, where people would be unaware of the extra pc usage.
Large offices/companies wont have very powerful GPU's if any at all.
It would be easier to organise a CPU botnet than a GPU botnet, because i can farm large amount of CPU power from "large" companies, but with GPU i would have to gather from individuals, which would be harder.