Jerusalem Post writer Tom Gross is a wanker of the first order (bugmenot required). He seems to be implying that if you say the Nazi death camps killed a lot of gypsies, that makes you a Holocaust denier.
"The Guardian also couldn’t resist greatly exaggerating the numbers of Roma (Gypsies) who died in the camps. (Perhaps the paper isn’t aware that inflating the number of Roma and homosexuals killed by the Nazis, in order to try to de-emphasize the Jewish centrality of the Holocaust, is now a favorite trick of revisionist historians.)"
I’ve read the Guardian’s coverage around Holocaust Memorial Day. It appears to have no data at all concerning Roma deaths. It does say "(Roma, communists and gays also suffered and died in the camps)", and "Six million Jews died in the Nazi camps, along with millions of others, including Roma gypsies, Soviet prisoners of war, political opponents of the Nazis, homosexuals, beggars, alcoholics and mentally ill and disabled people".
Independent stats suggest that 500,000-1.5 million Roma died in the Holocaust (absolute numbers are hard to come by since the prewar Roma population was fairly definitionally rather hard to count). If I were a gypsy, I’d be strongly inclined to punch Mr Gross in the head.