So I was reading some stuff on bulbapedia and something caught my eye, the Magma Stone. It was already in Gen IV and you could get it through hacking though it did nothing, yet in B&W 2 it is an item you get to find Heatran. I found that quite interesting. Were they going to use it in D/P/PT but changed their minds but already had both B&W games planned out so decided to wait for B&W 2, or do you think it was something they just decided to go ahead and use while they were working on B&W 2?