No, I am not and won't be voting for him either (presuming my vote even matters by the time the nomination fight gets to Texas; it may just be a protest vote). Romney has flip-flopped on so many issues there's no way to tell where he stands, and he's taken some positions of convenience (e.g., his states rights explanation of Romneycare). For a candidate with resources, Romney can be beaten, precisely because of his inconsistencies, but right now, he's the favourite, because
so far no one has the resources and the only people attacking his flip-flops are the Democrats.
I haven't decided who I'm going to vote for yet, but I won't be voting for Romney.