The optional profiling software APS available for the HP Z3100 and more Z models originally had a Logo engine, at least profiles I made with it have that name in the intro. The printer models were introduced in 2006. In 2008 the Z3200 printer model became available. The same APS software (license) switches to an X-rite engine when I use its profiling tools for the Z3200, at least there is no longer Logo but X-rite mentioned in the profiles. HP worked together with X-rite for both APS versions of the profiling software.
The HP Color Center profiling software that comes with said printers is an HP development, made in Barcelona, and has nothing to do with X-rite but the X-rite spectrometer hardware integrated in the printers.
The order of quality as far as I can judge, starting with worst: HP CC 2006, Logo APS 2006, X-rite APS 2008 - HP CC 2008, the last two equal in profile quality.
Yes, I think that page has been hijacked, Google would not be interested in visitors on a page that obscure.
Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htmDecember 2014 update, 700+ inkjet media white spectral plots