Setting up ad-hoc in Debian with DHCP? I made a quick search and found a doc that showed me a way to setup ad-hoc. Only problem is that I need this to work with my phone (WP7) and I'm not able to set a static IP on the phone so I need the debian machine to dish out IPs when clients connect to it :-) How can I set up a ad-hoc network that also gives out IPs? Pref in some range too :)

Without knowing which method you used, this writeup (a little dated, for Etch) suggests what all it takes is to have the DHCP server listen on the right interface. (Sounds about right, doesn't it?)

The Debian Wiki has an DHCP server entry, the Basic configuration mentioned there should be sufficient for your case.