On Good Morning America, Billie Joe described it as "Foxboro Hot Tubs meets Hell" sooo they probably changed it up a bit. Artists have been off-base describing their albums before, so we shall see.
If each album has it's own flavor, that's the best thing Green Day could do. If you're pumping out three albums you should change the style on each and see what sticks with fans and casual fans alike. The biggest mistake they could make would be having Dos and Tre sound similar to Uno. That would be bland. We'll see.
Lazy Bones sounds like their best song in years. Should be the first single. Nightlife however sounds like the Green Day version of The Offspring's Cruising California... *shiver*
I'm actually pretty optimistic for iDos! because it doesn't sound like it will be iUno! Part Two (which is what I feared) - iDos! has its own garage rock sound that I like. Also it's pretty much the second Foxboro Hot Tubs album and I *loved* the Foxboro Hot Tubs project.