Erm, White PSP has been out for a quite a while. Like... September last year or something (before Xbox 360, DS Lite and Wii (lol) were released, I THINK). They just only got around the bringing it outside of Japan recently.
But whatever, I somewhat like the ad, even if I don't like the PSP.
She's not strangling/choking him, looks more like a provocative(/sexual?) thing to me.