Yes, but Sony was the first company to allow Handheld-to-Console Gaming using an Eighth Generation Handheld. And now, it looks like Nintendo will steal Sony's idea using the 3DS - also an eighth generation handheld.
Please quit trolling, you're really bad at it. We both know hat doesn't make a difference which generation the handheld is made in; it's the same concept. It's the same idea Nintendo came up with in the first place... Sony stole the idea, get over it.
Not to mention, In terms of Sony's handhelds, it's Sony's second major handheld system, just like the GBA was Nintendo's Second major handheld system (not a revision) in the GameBoy line. So if you're going by generations, Sony copied again.