0$ ??! might be good for regging a few names and parking them ?? nothing to lose i guess on this deal if it's really free !
although on their terms and conditions page, this is what I see...
"You agree that you are responsible for any and all fees and costs related to the registration of your domain name, and you authorize 1&1 to debit your credit card for any such fees and costs."
This seems like a risky thing ... even if they'rte giving away domains for free, one might have to provide one's credit card info ....