Hi Victor,
The ProCurve 2600 and 2600-PWR series switches now supports LLDP-MED starting with H.08.90 firmware. It's been released to support, and should be available on the web site in a couple of weeks.
In addition, all of the new 5400 chassis, 3500 stackable and 4200 series switches announced today all support LLDP-MED.
Cheers