simply idiotic for them to stick with it given how utterly disappointing the G5
I hear this a lot but my 2008 Macbook Pro with 2.5GHz Core2 Duo 'Penryn' and 6GB RAM is not half as nippy as my 2005 PowerMac with 2.7GHz G5 and 4GB RAM when it comes to running Logic Pro.
Or are you referring to it's power consumption? There the Core2 wipes the floor with the G5.