The new PlayStation 3 hardware will feature the latest in Sony’s cost reductions and be smaller and more efficient and will feature a cooler looking design. The new unit is said to trim weight off the PS3 slim and reduce power consumption from 230W to 200W. The new unit is also said to come standard with a 320GB hard drive.
Rumors suggest new Sony PS3 model
http://www.geek.com/articles/games/sony-introducing-new-ps3-model-ps2-compatibility-listed-20110620/
http://www.engadget.com/2011/06/20/sony-intros-new-ps3-slim-in-japan-lighter-consumes-less-power/