An image taken from Microsoft's E3 Press rehearsal and originally published to an online company image gallery shows a peculiar fourth Xbox 360 on stage suggesting that Microsoft will add yet another model to its current line up of three machines.

The [image], entitled "Pick Your System" and originally posted to a [Microsoft Flickr account], shows four dimly lit Xbox 360s on stage whereas the company currently only offers three versions; a Core model for US$299, a premium model with hard drive for $399, and an Elite model with a larger capacity hard drive and HDMI support for $479.

The report surfaced amid [rumblings] that Microsoft will drop the price of existing Xbox 360 models in the wake of Sony's US$100 [PS3 price drop].