As mentioned in ""Current Mac Hardware: Time to Buy?"" in TidBITS 419, Apple officially today announced the first Power Macintosh powered by a 300 MHz PowerPC G3 processor. Starting at $2,499 for a desktop model with 32 MB RAM and a 4 GB hard disk, the new machines are available now in preset and build-to-order configurations from the online Apple Store. The announcement was made during Interim CEO Steve Jobs's keynote address at this week's Seybold Seminar, where Jobs also introduced the Apple Studio Display, a $1,999 flat-panel monitor to be available in May, and demonstrated a prototype Power Macintosh using a 400 MHz G3 processor manufactured with a new copper fabrication technology developed by IBM. Now gone from the Apple Store's virtual shelves are the just-discontinued PowerBook G3, the PowerBook 2400, and the 20th Anniversary Macintosh, plus all variations of the PowerBook 3400 except the 3400c/240 configuration.