There’s also the question of how long Apple wants to stay with the G4’s technology. SDRAM and 133 MHz bus speeds are now quite dated, but redesigning the CPU to take advantage of DDR and new bus transport technology would be a considerable task. With both Intel and AMD pushing into the 64-bit market this year, Apple runs the risk of being left behind if they continue to back a 32-bit-only technology much longer—but there’s still no word yet on whether or not the G5 will be ready in time, or if it will deliver its promised performance.