[url="http://biz.yahoo.com/prnews/050209/law068_1.html"]id Software Confirms Next DOOM 3 Invasion Set for Week of April 4[/url] is a press release that seems to pin down April 4 as the release date for the Resurrection of Evil add-on for DOOM 3 PC, as well as the Xbox edition of the first-person shooter. The release states that the date is being announced by both id Software and Activision, so it's possible that id is abandoning their signature "when it's done" release date for the PC add-on, which is being co-developed by Nerve Software. Click the Yahoo! link above for more in-depth info.