According to our connections at Core Design, Angel of Darkness should not be on the shelves yet. The release date they were shooting for was Christmas 2003, probably a November release date as most of the rest of the TR games have had. Then, in Summer of 2002, Eidos told the Angel of Darkness team to have the program ready for release in Christmas of 2002, full twelve months before their original projected date of completion. Naturally, this was all but impossible, so Eidos backed the date up to February of this year. In the meantime, two of their staff quit due to a disagreement and the remaining AI programmer was, according to my informer, "not exactly the best programmer we've ever used." In addition, there was major slowdown plaguing the NTSC version and a slew of other bugs that needed to be worked out. What it boiled down to was the entire staff pulling four days of all-nighters for no extra pay in an attempt to get Angel of Darkness out before the end of Eidos's fiscal year so they could report a profit to the shareholders. It was very heavily implied that if it was NOT ready by July of 2003 that they would all lose their jobs.
News source: Game Bunker