I know scrypt was designed to lessen the GPU/ASIC advantage.
We now have litecoin as a real-world example of this. However, it hasn't worked out perfectly. Most coins are mined by GPUs, although the advantage is probably smaller than it would have been with SHA-256.
I wonder how the future for scrypt and newer generations of this approach looks like:
- Are there alternatives being developed?
- Are there specific issues exposed by Litecoin that could be addressed?