That's actually a rather neat idea. . . I'm not 
sure how you would trace something like that, 
especially once you hit a dealer who probably 
wouldn't be able to tell you where a particular 
cel came from. . . (Or couldn't/wouldn't want to 
tell if they did rememeber.)

But if it could be traced, that would be 
interesting. ^_^

Many Sharp Smiles,
--Drac