Apple has sent out invitation for a special media event on March 17th. The event will focus on iPhone OS 3.0 and new iPhone SDK. Apple is calling this event an “advance preview of what we’re building”. The event will take place at Apple, Building 4, Town Hall on March 17 at 10:00am.

No other information about the event is given. This proves that our information about Apple’s plan to release iPhone OS 3.0 by summer is right. So we will see a new iPhone and new OS to accompany it by summer.
[Via Engadget]