Being ultra-cynical here for a moment, that could be a little risky. If your phone is stolen, or found by someone more unscrupulous, they presumably would be able to get your name off the phone itself, and would have your phone number. Depending on where you live, they might be able to get an address from that.
Call you up, ask to meet you somewhere, and they'll have a house - presumably with a lot of gadgets in it - and they know you'll be out.
(Of course, if your address is in the iPhones phone book, they already have this...

)