Revelation Online will boast giant turtle housing
The concept here is that at level 40, players will travel to said giant turtle and purchase an apartment of their own. There's a common area on the bottom floor (shell?) where characters can socialize, with the instanced apartments accessible off of that room. Players can also port right to their room from anywhere in the world and invite friends to come over to check out their creation.
So far the housing system has two themes and "over 160" types of furniture, some of which is interactive. You can scope out some of the possibilities below.