at the time that the non m2 version of the 800 worked with IP, the sony techs said the same thing.  it worked just fine.  maybe they realized their mistake after someone pointed it out to them that it worked and decided to disable it on the next version.

pretty sure the 700 does not work with ip control though.  if you want an ip contrallable sony, i believe  you need to look at the higher end ES version.