Can my PowerBook G4 12" run Leopard?

mine does, but poorly, it’s do’able, but it’s not ideal, so, yeah, it’s possible

there is no a emulator or a simulator or a program that says that you can run Leoaprd?

nope, no vista proofing tools here, haha, well, just let me say this, as long as you don’t use faster machines, you just wont know any better..

and other alternatives are keep running tiger or just getting a new mac, i mean, powerbook – new macbook…catch my drift ?