Current gen: PS4, Wii U, PS Vita, Vita TV, 3DS
Last gen: PS3, PSP 1000, PSP 2000, DSi, Wii, Xbox 360
Previous gens: SNES, N64, PS1, Gameboy Color, GBA, GBA SP, PS2, Gamecube, Xbox
I don't have an Xbox or PS1 anymore though.
I've had a lot of iPhones. I'm not sure where they count in all this.