The one I know of is the Epic 4G, but I think that's only available on Sprint. If their family plan discount didn't suck we'd just do that since I'm already a customer.

But like I said, 4G is squarely in "nice to have" territory for what I figure my wife will be doing with it. Having a usable physical keyboard is the most important thing to her, and being able to get rid of carrier/manufacturer crapware is the most important thing to me.