it sounds interesting ... iPhone is planned to make a fight with Blackberry ...
Will it success? Will other corporations join the fight?
Anyway, iPhone SDK is quite a bit closed. see The iPhone SDK: The day after . What can be built on a closed SDK ??? Does it really a good sign to end the multi-processing pipeline in mobile phone??
Who knows the answer?
BTW, this will be an interesting 2008 ... tech. might thrive again since the finance collapsed.