We have been working EIP-1167 (https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1167.md) through the process. To date we have had few comments directly, but we do have several users of this code in production. While not ground breaking, we believe a standard for this will allow third party tools to provide better user experience for contracts that implement hard-wired proxies.
We are planning on submitting a PR to move the EIP to LAST CALL status today with a two week comment period per the EIP process. Please feel free to weigh in on the discussion on EIP gitter, here, or on the github issue created for that purpose (https://github.com/optionality/clone-factory/issues/10).