We are just hours away from Steve Jobs' keynote speech at the worldwide developers conference but rumours are still hitting the web at this late stage as to what might be announced.

Aside from the presumed software-related news, and the hugely anticipated 3G iPhone, it's thought Apple could announce a much overdue refresh to its Mac mini small form factor PC.

Leaked images showing Apple promo material for such a machine have been sent to the Unofficial Apple Weblog revealing the Mac "Fusion."

Obiously aimed at the target audience for the event - developers - the blurb shown is developer-related with one legible chunk of text reading as follows:

"Building your applications for the Mac has never been easier. Mac Fusion was designed exclusively for new developers wishing to port their existing programs to the Mac, without breaking the bank."

"Mac Fusion allows you to explore the power and stability of Mac OS X while keeping the ability to run alternate operating systems, such as Windows or Linux, via Boot Camp."

All will be revealed soon...