I did that with my PSP-Go, a mate pulled one out of his pocket and showed me it with custom firmware and that was it I went out and got one.
The formfactor of the Go was basically perfect for a portable, I only moved up into a Vita when development had hit it’s limitations but I still have a PSP Emulator on it.
I still use Friendly for Facebook rather than the app but bits keep breaking which I understand is Facebook’s intention.