Those "programs and tools" will be illegal to have/use/distribute/even talk about in the U.S. if SOPA is passed as it's currently written. And I don't see any chance of that provision being removed from the bill. (Same provision was included in the DMCA after all).
Even if Obama vetos it, if 2/3 of the House and 2/3 of the Senate support it, THEY WILL OVERRIDE HIS VETO. And as you pointed out, who knows what Obama's going to do. Hopefully, he'll listen to what the originators (basically inventors) of the Internet keep saying--NONE OF THEM ARE IN FAVOR OF THIS PROPOSED LAW.