Here's the sound I have on my new, new, new gp2x:"The Illudeum PU-36 Space Modulator!"
I have always thought "GP2X" is the geekiest sounding name for a geektoy ever. Ask 10 geeks to pick a name for the geekiest geek toy in the world from a list and "GP2X" will win every time. When I first saw the thing and knew I had to have one, the name always reminded me of Marvin the Martian. So as I was waiting for 3 weeks to get a working gp2x, I kept asking my wife "where's my Space Modulator! I need my Space modulator!" Hence the new startup sound.
I had to edit out the word "explosive" from "Illudeum PU-36 Explosive Space Modulator," partly because the sound clip was too long with it, and partly because I don't want something explosive in my hands when I'm playing Metal Slug.
I renamed it from gp2xsound.wav, because I still have the other one on the web host.