Agggh! Please don't call them "martyrs." "Martyred" is when somebody kills you for your faith, not when you kill yourself while trying to kill other people for your "faith."
I get so furious at the news media for going along with crazy Muslim terminology on this one. They're suicide attackers and nothing more. Nobody ever called the Japanese kamikaze bombers "martyrs," to my knowledge, and they were the same as these guys (only better armed).
Huge difference - the kamikazes attacked military targets, the homicide/suicide bombers target civilians. A military pilot deliberately crashing into the warship of his enemy in a declared war can't be compared to a man with a bomb walking into a shopping mall.