Only problem with that is he would need to install software on the phone. Which isnt possible without a touch screen to enter the data.
Another alternative would be to find out what file/folder holds your contact info and copy it to the other phone.
At times like this is where weekly pim backups and dashwire/myphone sync's really shine. I have all my stuff double backed up. If you don't think your phone is not important enough to backup. Try to go a few days without it.
I'm lost if i leave the house without it.