Agreed that Underworld's "Barbera..." is a great album, just too short. They managed to update their sound, try new things...in ways I didn't know I wanted. I suppose it's easier with 2 people, one mainly instrumental. It would be like Bono and Edge. The thing is, I believe they'd still work with U2. As a side project, Hyde's double album with Eno...was everything U2 needs.