Does weight matter?
I bought my SE M600i because it was not to heavy at 112 grams. It was sold as a very light and pocketable touch screen smartphone.
I hoped that when a newer version was announced in would still be 112grams or lighter with at least a basic 2.0 camera and a few other improvments.
The P1 has it seems, got all the improvments but is heavier at 124 grams.
Will the weight be a factor for you, in deciding to upgrade to the SE P1?