I too have been making the move to NameCheap. Regardless of whether GoDaddy has said they no longer support it, it's an obvious PR move, they lobbied incredibly hard to ensure that they could be exempt from it (and succeeded, but only so they can use it as a competitive advantage probably), the fact that they supported it in the first place is enough to make me move.
tl;dr not supporting it means nothing, they supported it and I want nothing to do with a company that supports it at any moment in time.
NameCheap has a very friendly sales team, and the PR guy has been active in a number of SOPA-related anti-GoDaddy threads on Reddit. They have the coupon 'SOPASUCKS' up right now if anyone wants a bit off their transfer costs.