Apple has unveiled a new iPhone 15 Pro with a titanium case and faster chip that enables better cameras and mobile gaming, moves designed to respond to a global smartphone slump. The new line-up includes iPhone 15 starting at $US799 ($A1244 although Apple says it will cost from $A1499 in Australia) and iPhone 15 Plus starting at $US899 ($A1399). Apple chose not to raise prices during a tough period globally for smartphone sales. Watch the latest News on Channel 7 or stream for free on 7plus >> For the Pro series, prices start at $US999 ($A1555) and the Pro Max...