Last month the NSA released a paper on Simon and Speck, which are lightweight block ciphers that appear to be applicable to a large part of our embedded user base. The paper can be found here: http://eprint.iacr.org/2013/404.pdf
Our users who have a keen interest in small size and low power consumption will find this paper particularly interesting.
We are considering the possibility of implementing Simon and Speck in wolfSSL and WolfCrypt. Does this sound interesting to you? If your answer is yes, then let us know your thoughts at facts@wolfssl.com.