Hi there,
First, sorry for my bad English, I’m a little French guy.
This is my first comment here at ZBrush Central, and I didn’t thought that it will be to say I’m sad and disappointed…
I follow Pixologic since the begining and when ZBrush 3 is out for PC, I decided to bought Zbrush 2 for Mac because update to ZBrush 3 will be for free. But… I have a G4 (Power PC), ZBrush 2 for Mac works well with but the new ZBrush 3 for Mac need Intel-Mac.
Well why for PC, system required are Windows 2000, XP, Vista and for Mac is only Intel-Mac? I know that Os Tiger and OS Leopard are different but ZBrush 2 for Mac need a Power PC then why Pixologic did not develop two different system? One for Power PC, one for Intel.
I can’t, for now, bought an Intel-Mac then I did not receive my update yet and when I have it, I will not be able to use it… Then I sad and disappointed 
I did not seek to work Zbrush 2 much because I knew that there was much difference between version 2 and 3. if I had known…
Well sorry for this post but I wanted to speak about it.Thank you to have read me.
Eric