Where's the Java support?
This is non-news. Mozilla have no Mobile Java version of Firefox in development. I'd say 95% of phones on the market today have Java capability come that is being completely ignored. The ability to run Windows Mobile and Symbian apps is nowhere to be found on most handsets - they are more a PDA thing. So perhaps Mozilla should have said they want to "rock the PDA world?"
Also could you skin down Firefox to ~128KB as is required for Java Mobile apps and as Opera has done? I don't think so. Including support for add-ons is fine, but it increases footprint and would probably suck up the little processing power that mobiles have. Mozilla are not going to make an impact on the mobile scene unless they realise the future is in Java, not Windows Mobile.