In a previous note and at a recent conference, I was assuming devices would be converging soon, and I had given one example: I thought it would just be a matter of time before Nintendo introduced a Wi-Fi enabled gameboy (potentially turning it into a phone as well with an embedded Skype client...).
Well, this is now reality: Sony just introduced the Wi-Fi enabled portable play-station (looks like a Gameboy to me...). More info here.