If you’re hankering for a better camera on the iPhone, you may not have too much longer to wait.

Per a report on DigiTimes, Apple’s next-generation iPhone is expected to ship with an improved 5-megapixel camera.

According to the report, OmniVision Technologies is expected to see CMOS image sensor orders for Apple’s iPhone devices grow to 40-45 million units in 2010 from 20-21 million estimated this year, according to sources close to the story. These figures include 5-megapixel CIS orders for the next-generation iPhone model according to those sources.

The company currently supplies the 3.2-megapixel CIS found in the iPhone 3GS.

A next generation iPhone is predicted to be available possibly by June next year with other rumors pointing towards iPhone OS 4.0 testing evidence emerging on the web logs of various larger web sites.

Stay tuned for additional details as they become available.