June has arrived and for Apple fans and investors that means just one thing — a new iPhone.

The encore to the original iPhone, which launched nearly a year ago amid unprecedented industry buzz, is widely expected to be the main attraction when Chief Executive Steve Jobs takes the stage at Apple’s developers’ conference next Monday.

The new iPhone will be accompanied by support for corporate e-mail and a slate of new programs that could help boost sales of the devices, which sport a touch-sensitive screen, wireless Internet access and iPod-style media functions.

“The thing for Apple is to be able to leverage the iPhone for further innovation, or they run the risk of being the next (Motorola) RAZR, which was iconic in its own way, but for which innovation did not come fast enough,” Shiv Bakhshi, director of mobility research for market research firm IDC.