Intel modifies launch schedule for Pentium IIIs is a Yahoo! news report announcing a "rejiggered" fall PIII launch schedule. Thanks GA-Source. Here's a bit from the report:

The Santa Clara, Calif., chip maker this week told PC makers it will push back the introduction of a Pentium III for desktop PCs, based on the 0.18 micron process, until November while it tweaks the design to gain greater performance.

The chip was expected to debut at 600MHz in September. The move is not expected to delay desktop product introductions. Intel ( INTC ) will make amends by introducing a 600MHz Pentium III based on its .25 micron manufacturing process later this summer, which is earlier than expected. The current 450MHz, 500MHz and 550MHz Pentium IIIs and Celeron chips all use this manufacturing process.