In what can best be described as the tortured logic of a madman, Prop 8 opponents have filed suit to overturn the will of the voters just one more time by claiming that the constitutional amendment is (wait for it)… unconstitutional. Their "logic" (and I do use that word loosely) is that acceptance of Prop 8 as a new part of the constitution is, in effect, a change of unrelated portions of the constitution relating to equality under the law. Since changes to the state constitution must originate in the legislature, they hope to get a judge to rule that the initiative was improperly filed and passed.
There's just one problem: the amendment doesn't actually change the wording or structure of any existing part of the state constitution at all. Only an absolute hack of a judge would rule otherwise. This kind of "heads I win, tails we flip again" mentality is a dangerous subversion of law and order that should never happen in a free republic. The people perpetuating this legal fraud should be ashamed of themselves and their "victory at all costs" methods.