Guys you're awsome, pretty cool & funny names ;) I think "N" comes from Nintendo and "X"? Experience? don't know, i think the rumor of two consoles in one (handle & desktop console) would be the "X".
MEGADRIVE, SNES, SATURN, PS1, N64, DREAMCAST, PS2, GC, XBOX, X360, Wii, PS3, Wii U, PS4, XONE, GAME GEAR, GBP, GBA, NGAGE, GBAP, DS, PSP, 3DS, VITA.