gregap_42

I bought an HD500 at GuitarCenter tonight. I was super excited to get it home and play with it, but when I went to register it I realized that Line6 is releasing the HD500x. Very frustrating! Does anyone know what exactly the difference is? I'm not usually the guy that has to have the newest of everything, but the quality of the models seems to improve by leaps and bounds each time there's a new product. I guess that's the point, but I'd like the best possible tone for my money. Any help/info would be appreciated...especially from Line6 employees.