>>  in case Apple changes their OS for something better, yah, like 
>>that's going to happen next week, but it sure makes the code 
>>simpler.
>>
>  We had almost no notice on the PowerPC to Intel change.
>  I'm sure something similar could happen again.

I fully agree but Apple even indicated quite directly that they might 
change again. I tried to explain this situation in my short essay 
concerning "Universal Binaries" (thanks to Alain for keeping it 
accessible):

<http://euro.futurebasic.com/en/info_19.php>

In short:
Please remember that Apple changed to Intel because of a lack of 
adequate PPC CPUs for _laptops_!
As you all know, "Universal Binaries" are called universal because 
they contain code for PPC and Intel CPUs and please note that Apple 
definitely depreciates to compile Intel-only applications! So why is 
this?
There are two reasons: Firstly, Apple doesn't want to puzzle users 
who transfer software from an Intel to a PPC Mac and secondly Apple 
wishes to switch processors to its liking.

Best
-- 

                   Herbie

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          <http://www.gluender.de>