I notice a good few people here lately talking about having or using iphones...........

Anybody have any tips or usefull functions they've discovered or been shown on their iphones they'd like to share with others???

Or any usefull or interesting apps they're come accross or found???

I think one of the first things a friend showed me was how to take a screen shot by pressing the home key and the lock button at the same time..........very usefull.........

Anybody else???