Well, you must admit they added some of their own samples to the PA2X sample memmory.
True, but look at it this way because they could get in trouble here.
I sell quite a large selection of Libraries for the Pa2X myself but I don't tell people that they have to call their keyboard an IA-Studio X2 after they load one of my sound libraries as it's a normal function of the keyboard to be able to do that.
Putting a KORG Pa2X into a box doesn't give them the right to re-badge a KORG product either with their name. Quite a dangerous thing to do actually. KORG won't like that at all.
There's nothing wrong with their idea, but it should be sold as an add on kit for exsisting products, or offer their services under customisation of existing products. Re-bagging someone else product won't go down well at all and is likley totally illegal.
Regards
James.