I wrote before about Google Earth and SL-like games becoming increasingly alike. Here's a nice illustration.
An Ikea bed model for Sims 2.
An Ikea bed model for Sketch-up and Google Earth (gEarth?).
Here's an Ikea table for Second Life itself.
Also, a video of a project "named 3D IKEA Manual [that] aims to show the potential of augmented reality (AR) in domestic use".