FYI after you do a migration of applications to the new machine, if any are giving you trouble there are a few things you can do:
1. Launch the System Profiler by clicking Apple>About this mac>More Info. On the left hand side, choose "Applications." the system will display all applications on the system, and tell you what kind of apps they are. If they arent either Intel or Universal apps, they wont run on an Intel mac.
2. Go to Applications>Utilities>Console and review the system logs. If an application is crashing, it usually reports why its crashing.
3. When running an application from the old machine, if it doesn't actually open but it doesnt give an error message make sure you are running it from an Admin account on the machine. Sometimes apps require Admin account to launch, especially if there are rights issues on the file coming over from the previous mac. You can verify this manually by highlighting the application and choosing "Get info" in the finder. In the information window that comes up, look under "Permissions."
4. Sometimes disk permissions get wonky in OSX (not as often in Snow Leopard.) You can go to Applications>Utilities>Disk Utilities, choose the system hard drive and volume on the left side and choose "Verify Disk Permissions" If the system finds any issues, you can then run "Repair Disk Permissions" next.
Just quick food for thought
Congrats on the new amazing machine!