I will get a gateway too, but i don't know where i will setup the gateway. I'm sure i will move in the next years to another city. Maybe i will setup the gateway at my home city in thuringia. Or will use the gateway as a mobile gateway for "scientific"-purpose 
I have close connections to the freifunk movement in my home city. As far as i know, they like ttn but the focus is freifunk. Another contact could be the AGDSN. They take care of the internet around the dorms and have access to the roofs of Wundstraße near the TU. The Turmlabor of TUD could be a contact too.
At least we are two gateway owners in DD.