Yes I would love to have a wind turbine as well and might solar panels as it would take over when the sun goes in or at night and my inverter does already have a second set of input sockets with a diode on each set for separation. Wind is indeed used for remote applications in conjunction with solar. Here in the UK there are a number of luminous road signs that are powered from a solar panel and a wind turbine, but surprise, surprise and I really can't think why the rushing out just escapes me... They are using horizontal axis wind turbines about 20 cm in diameter not vertical axis wind turbines. It's not like vertical axis wind turbines are anything new we have all seen for many years the triple egg cup turbine used on wind speed sensors. How strange they not be using the same type of design to generate power for a luminous sign that does not require much power and to be fair is probably mostly powered by the solar panel. Vertical axis wind turbines don't seem to have much real application they just look slightly better as in this application. I'm not saying I would not use one as it's simplicity of installation is about it's only advantage from what I understand. But if you want to do any serious generation with a single unit you were go for a horizontal axis and this is something I would now consider myself rather than the vertical axis.
Simon, I actually had some projects I worked on regarding green energy in last 10 years.. I designed few interactive road sign signalization products on solar power, a electric vehicle charging station, and a pilot project for off the grid street lights.. Off the grid street lights pilot is powered by hybrid solar/wind gen. I used vertical 500W turbine and 100W solar panel, and must say wind is pretty much useless.. It contributed less than 2% of the total energy generated.. Problem with the wind is that it doesn't scale well (it is not linear) to smaller sizes, and needs to be put in a special place to work well.. In real life, it is much easier (and less expensive) to just slap on one more solar panel, and still save money.. Problem is, in real life you don't get to choose location.. It is given to you and then you have to design around it.
But for very low power electronics, it could be useful..