simple question maybe stupid question

my cousin lost his nintendo ds and his sony psp game system stolen when he was staying in hotel my question is any way to track the serial number his family filled a police report

I don't know the answer,but I think it's a damn good question.When games are played on the psp online,wouldn't it be possible to track mac adress/SN???

if the thief formats it ..to grt rid of log in info.i think it would be hard to trace...

thanks guys for the info maybe dam house keepers in the hotel steal the items