The capabilities of an iPhone are constantly on the cusp of being extended due to the development of innovative new apps. This ingenious app introduces a new function, the ability to weigh fruit onscreen. While the Plum-O-Meter is likely capable of weighing a range of other fruits in its current format, fruit lovers are going to have to wait for the iPhone screens to get even bigger before Apple can cater for all fruit types! Credit: YouTube/simon gladman