Remember all those photoshops of a Playstaion branded cell phone, or the iPhone/PSP mash-ups? Well keep dreaming kid, it'll never happen.
For now, you'll have to settle for this new Sony headset designed specifically for use of Skype on your PSP. It's everything you'd expect it to be with soft earbuds, adjustable microphone, and a thirty dollar price tag. Not exactly cheap, but we're talking about something that will allow you to make free phone calls with the internet from your handheld gaming device. Now go be a good Sony fanboy and buy one, right after you scream about how we get paid by Microsoft to tell you not to buy this.
PSP Fanboy: Skype Headset Finally Available