Microsoft appears to be hemorrhaging information in the lead-up to the 2009 Electronic Entertainment Expo, which is on track to tear into Los Angeles from June 1-4. Last week, an off-the-reservation game journalist posting under the Twitter account Game Fork spilled alleged details on what Microsoft will bring to its annual press conference, which is to take place this year on June 1.

For a game devoted to speed, the official Forza 3 announcement is sure taking its sweet time.

Amid the rumors of a Metal Gear Solid 4 for the Xbox 360, a motion-sensing camera, and a variety of long-under-the-radar demos, Game Fork said that Microsoft would officially unveil Forza Motosport 3. Today, the terra firma under which that rumor stands firmed up a bit, as Amazon Germany's online database has listed a Prima Strategy Game Guide for the racer. According to the product page, the Forza 3 strategy guide is expected to be available in Germany on September 30.

Forza 3's existence first became known in mid-2008 as part of the seismic information leak by research firm Intellisponse. Documents related to the leak indicated that the racer would be a dramatic expansion over its highly acclaimed predecessor, released in 2007, offering more than 100 tracks and 400 cars. The documents also promised the game would introduce several new racing modes--drag, drift, oval, point-to-point--as well as new online community features.

Microsoft, however, continues to play coy over the game's existence. "We love your excitement and enthusiasm for the franchise but we have nothing to announce," a rep told GameSpot today. "If and when we do, we will surely let you know."

Please note that while retailer listings frequently jump the gun on publishers' product announcements, they should not be taken as final confirmation of a game's existence, nor should the absence of a listing be considered as proof that a game isn't coming to a given platform.