Old programmes and Lion. How can I tell what won't work anymore?

Hi.
I am thinking of upgrading to Lion, but I am aware that older programmes will not work. This is only to be expected, as I am a firm believer that backwards compatibility should not be too backwards.
However, is there any way to determine which programmes I currently have will not work with Lion before upgrading? Or do I have to upgrade and then find out th hard way?
Do Universal Binary programmes work, or will they be affected?
This would be helpful to know as it is not as easy to know as when Apple dropped Classic support.
Cheers.
Peter

Hi,
Yes it can be a bit of a dilemma...
Have a Look at this Link...
http://roaringapps.com/
Cheers

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