Napster licenses tool to identify recordings . Chess genius to take on computer . Bahrain is expected to host this fall the biggest chess showdown since Garry Kasparov lost to IBM's Deep Blue in 1997.
Apple schedules teaser event .
Apple schedules a press event for May 1 with CEO Steve Jobs, fueling speculation that he will unveil new Macs or announce plans for retail stores. SGI to lay off 1,000 amid losses .