HPN-SSH Performance vs. OpenSSH/SFTP Performance

I just came across the High Performance SSH/SCP - (HPN-SSH) -
http://www.psc.edu/networking/projects/hpn-ssh/ - and was wondering if
the HPN patches had been ported to mailine OpenSSH. If not, what
suggestions are available for improving the speed of SFTP in local LAN
environments? Thanks for your help.
Mathew Brown

http://www.fastmail.fm - Does exactly what it says on the tin