Kurt there's no need to turn Rosetta on/off to check if a program is PPC only.
All you have to do is to show the Application's Package Contents , navigate to Contents/Mac OS and run the file command on the binaries in that directory.
Yes, I know. That was just one way of finding out. You can also start the System Profiler and click on the Software heading. All software on the drive is listed, and the Kind column will tell you if it's Intel, Universal, or PPC.
Part of the other reason to do that was to force Leopard or SL to reinstall Rosetta via the download method when you try run a PPC only app. Disabling Rosetta makes the OS think it isn't installed.
In fact guys why are we necoring a thread from August ?
Because users would really like to be able to run their PPC software in Lion instead of having to boot to Snow Leopard to run those few apps. For those with new Macs that won't boot to anything less than Lion, users don't want to have to keep another Mac around just for those few apps, or go through the expense of getting a VM and a server copy of SL for them.
The common argument of course is, "just get a newer version of the software". Well, I'd like to, but the scanner division at Kodak (who bought out Scitex/Creo) never updated the software, and now looks like they never will. I must have a machine capable of running Snow Leopard. A VM doesn't work for me because the scanning software only looks for the scanner on a FireWire connection, and not a single VM supports FW port linking from within the virtual environment.
What is necoring, anyway? The word doesn't exist with any type of explanation on a Google search. Necore, or necoring shows up in a grand total of 31 matches. Like this post by someone on a gaming forum:
Stop necoring this thread! We figured out long ago that i'm a dummy and I rushed to conclusions. This thread is pointless and should not be necro'd.
Which makes no sense whatsoever without knowing what "necoring" means. It's got to be one heck of a limited use slang term.