B&B On The 4-inch iPhone
In listening to this week's episode of The B&B Podcast, Shawn and Ben made an excellent point I have been meaning to express for a while: if Apple ever goes with a bigger iPhone, it will be because of software.
There won't be a bigger iPhone because of Samsung's latest Galaxy. A bigger iPhone will come out only if iOS – and thus the device's experience – will directly benefit from the increased size.
Key points at around the 23-minute mark. Also: Rene Ritchie's comprehensive take on the ramifications of a 4-inch iPhone.