by , 3:10 PM EDT, August 29th, 2005

Apple Computer on Monday sent out invitations to the media, including this publication, for a special event to be held in San Francisco on Sept. 7. Referring to the announcement of the iPod four years ago, the invitations read: "1,000 songs in your pocket changed everything. Here we go again."

Apple has used such events to launch the iTunes Music Store, iPod photo and iPod: U2 Special Edition, and other such products and services in recent years. In keeping with those events, Apple has not revealed what specifically it will unveil, but the reference to "1,000 songs in your pocket changed everything" suggests that it could be related to Apple's music business.

In his own write up of the event at CNet, John Borland referred to recent news articles and speculates that the company might unveil a video iPod. Or perhaps Apple will finally take the wraps off the iTunes-enabled Motorola phone. Other options, which don't seem to merit such a major event, include the introduction of a flash-based iPod mini or larger-capacity iPod shuffles.

[Update: The article was updated with additional information. - Editor]