A company in Canada called Magenn Power have developed a lighter than air inflatable wind turbine called MARS (Magenn Air Rotor System). I love conventional wind turbines and hope to see many more spring up across the country (especially outsde the homes of countryside alliance members). However they are not exactly portable. The Magenn system would allow a 4KW turbine to be packed into the boot of a family hatchback and be deployed anywhere with speed and ease. They are planning version capable of 1-2MW. These can be used for anything from the supply for a small town to power for emergency aid locations. They also have little or no chance of killing birds because they have no long blades and they are bouncy. Magenn's website is here.
Now for the picture: -