I haven’t bought it myself, but I’ve been following it on the web and on Twitter and I’ve decided to post the important links I’ve found in the hopes it helps someone else. As to whether to upgrade now or later, I always wait for the early adopters to find all the issues for me, then upgrade when the 1st or 2nd update comes out.
Big points to keep in mind:
1. Not all printers or peripherals work in 10.6. 10.6 automatically installs new device drivers, if available. Contact the manufacturer if your driver(s) are missing
2. 10.6 creats a “Incompatible Applications” folder for any apps it knows aren’t compatible. If an app is missing, chances are it’s been moved here
3. 10.6 does not run on PPC based machines.
4. Apple has dropped support for PPC-based apps, though they will still run in Rosetta. Make sure Rosetta is still installed before and after you load 10.6. (see comment below from @segdeha).
I’m going to link to my friend Keri Henare’s blog regarding his experience installing Snow Leopard Server as soon as he posts (should be this week).
Feel free to add more links in the comments and I’ll add them to this list:
Snow Leopard Application Compatibility Wiki