@Crashdown: With the devices having multiple functions, it becomes a little harder to define what the device is, for example, Nokia is market leader in digital cameras, sells way more gaming devices than Nintendo and i believe Apple is leading in portable MP3 players, but Nokia likely isn't far behind.

I guess it is more about what the devices primary purpose is/is intented to do, how it's used and how it's perceived.

Now, iPods are MP3 players, right?

I don't disagree with you on that, the iPod is clearly an mp3 player first, that's what it was originally designed to be. But if I look at myself for an example, I bought an iPhone for internet browsing, gaming and as a phone. I actually haven't even put a playlist on it yet (mostly because I have an app that kind of works like a satelite radio and it's free, I'm a sports talk radio guy). So for me, the iPhone has blurred those lines. I didn't buy it as an mp3 player, and I could have just stayed with my phone from Verizon which worked just fine, but I wanted access to those games. One of my friends kids has an iPod touch and ONLY uses it for video and games (exactly what someone would buy the PSPGo for), and we can't be the only 2 people that have done it for these reasons. I truly believe that when we're talking about portable gaming platforms, the iPod touch/iPhone has to be in the discussion.

@Crashdown: And even Nokia 6110 was bought as games device by some in the 90:s.

I'm not disagreeing at all about the principle, i've actually brought the subject up myself every now and then, it's just that there are lots of other portable devices you can play games with aside the ones mentioned.

Lots of kids seem to be using their mobile phones as portable game players because their parents don't buy them a handheld console, but they will buy a mobile phone, so the kids get a phone they can play games with.

I myself use my phone primarily for SMS/MMS, making phone calls and internet browsing.