As I know over at:
https://gitorious.org/bitcoin/bfgminer Luke Dashjr, the author of bfgminer released version 3.7.1
If someone would be interested in compiling 3.7.1 with cpu enabled possiblities that would be an great effort for those who mine scypt currencies with cpu.
It is known that SHA-256 mining with cpu is not cost-efficient. But with profitablity even better for scrypt that would really be the best effort.
As I know bfgminer 3.7.1 is quite an better build than newest cgminer, and it's really better compared.
If somebody would compile cpu enabled 3.7.1 posting they're LTC, FTC, DGC, and other wallets they might see donations coming to them even faster than ever.
As for people using cgminer it's important to install usb drivers for asic usb erupters again, as it changes to original state for those who wanna try 3.7.1 of bfgminer.
Thanks much to the first one creating an compiled version of 3.7.1 enabled with cpu. As I know bfgminer is the fastet build of cpumining, but author did not implement it in win binaryes.
Hope this would not cause problems and missunderstanding with author of bfgminer.