Just for grins, attached is a magic decoder for "works" vs "supported" in HPspeak.
If there is some functionality you need from a ProCurve that isn't available from HP, do please let them know via more official channels. If enough folks ask for the same thing then there is a chance HP may start offering it.
If there is a lower but still decent number of people asking for it (and I am simply _wildly_ speculating and making _no_ promises) a third party reference situation will arise.