Seems like someone else thinks 64 bit is the way to go too:
Caris & Company analyst Mark Stahlman has voiced concerns that Apple's rapid growth of computer sales over the past year is starting to slow.
Apple CEO Steve Jobs revealed that the company sold 1.25 million Macs in the last quarter, an increase of little more than five per cent on the previous three months, which Stahlman described as 'less-than-exciting'.
'With perhaps 135 per cent year-over-year sales growth for iPods and only 5 per cent for Macs in the quarter, Apple's computer sales momentum is waning,' he said.
He noted that Wall Street's reaction to the unveiling of the new Intel Macs - which sent the share price to a new high of $86.4 yesterday - should be tempered with realism.
'Intel's own roadmap implies that much of the "good stuff" won't appear until the end of calendar 2006, when next-generation Conroe and Merom [chipsets] are due to ship in volume,' he warned, adding that the introduction of new Macs later this year will coincide and possibly be overshadowed by the release of Microsoft's new Vista operating system.
The analyst also warned that Apple may lose some of its 'premium lustre' because the Intel chips it will be using may be out-gunned by the 64-bit processors from AMD, particularly in laptops.
'As impressive as the computer-intensive benchmarks offered by Apple might be, there is no way to avoid the fact that Intel's Core Duo processor is a 32-bit engine that is fundamentally obsolete in a 64-bit x86 world,' he said.
http://www.macuser.co.uk/?news/news_story.php?id=82157 need to register to view
But I'm sure that there will be processor upgrades at the end of the year. Or announced at next years key note.