I also have an U2 iPod - the first edition. I did not buy the packaged deal with the music as I already own everything by U2 even down to Passengers

It's actually BIG compared to other iPods that are out there now. I mainly use mine in a player I put in my kitchen. I use my iPhone now for listening to anything with headphones.
Still glad I have the U2 iPod though

Good Luck trying to find one!