On Sony’s official blog they just confirmed what’s going to be in their 2.4 (ie XBL killer) update:
A new PLAYSTATION 3 firmware update (v2.36) will be launching soon, improving system stability when playing select PlayStation format software titles. Weâ€™re also happy to officially report that the 2.40 system software update for PS3 will include â€œXMBâ€ access in-game. The update will also include â€œtrophies,â€ an exciting new feature that weâ€™ll be providing more details on soon, as well as some other new enhancements. Weâ€™ve talked about some of this on the blog previously and know that many of you canâ€™t wait to get your hands on these features. You can expect us to share all of the official details shortly.