Is Jack Johnson working on any new albums?

yes, hes actually got one coming out February 5th 2008.
Sleep Through The Static
and here are the track listings
1. All At Once
2. Sleep Through The Static
3. Hope
4. Angel
5. Enemy
6. If I Had Eyes
7. Same Girl
8. What You Thought You Need
9. Adrift
10. Go On
11. They Do, They Don't
12. While We Wait
13. Monsoon
14. Losing Keys

he's go one coming out early next year..