If you don't feel like punching big holes in your wall for wall-mounted speakers, this may be a good option. I was about to say "if you don't feel like spending money o­n speaker mounts for your wall," but considering the cost of these, speaker mounts may be a better idea.
Basically, these are wall-mounted speakers - but they're mounted in the sense that you mount a picture frame o­n the wall. They even have the little hooks o­n the back where you can hang them from a tack or small nail.

Onkyo Corporation will release the wall-mounted "D-207KW(W)" speaker o­n October 16th, which have thickness of 7cm. The price is 15,570 yen (for o­ne).

These are wall-mounted speakers intended for use with the "207 series" of speakers from the same company. As the main feature is the cabinet thickness being cut down to 7cm, o­nkyo has said that they are specifically well-suited for surround-channel speakers.

The two-way bass reflex speakers feature a 10cmA-OMF cone woofer, and 2.5cm soft dome tweeter. The frequency response is from 70Hz ~ 40kHz, and the crossover frequency is 6kHz. They are rated for an impedence of 6 ohms. The external dimensions are 210 x 82 x 241mm (W x D x H), and they have a weight of 2kg. The speaker terminal is o­ne-touch style.



Inspired by:
http://www.watch.impress.co.jp/av/docs/20040917/onkyo.htm

Press Release:
http://www2.onkyo.com/jp/what/news.nsf/view/D-207K?OpenDocument