RFC1712 - is anyone actually using GPOS RR's ?

Hi, As subject says, is anyone actually using these ? We were thinking of adding this to our automated dns scripts ... but if nobody actually uses them, we don't want to spend time on it ... /Jesper -- Jesper Skriver (JS4261-RIPE), Network manager Tele Danmark DataNet, IP section (AS3292) One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone to bind them.