Investment banking firm PiperJaffray analyst Gene Munster recently commented that it is very unlikely for Apple to showcase the iPhone at its upcoming event Worldwide Developers Conference (WWDC).

In lieu of it, Munster added that the show will be highlighted by new MacBook Pros and quite possibly new iMacs. Munster's basis for this observation is Apple's update history for its products. According to the analyst, professional notebooks are updated every 182 days on the average.

The most recent generation of MacBook Pro was launched around 210 days ago. Likewise, an iMac update is also long overdue as the last time Apple had it was 257 days ago. The average release date for every generation is usually around 168 days.

While the above mentioned products are yet to be confirmed, Apple has promised in the past that a full-featured version of OSX 10.5 Leopard will be demonstrated and handed out at WWDC.