WordPress Theme Switcher
For all those who have an interest in these things boren.nu has developed a theme-switcher plug-in for WordPress. Yes I do mean theme and not style. It has been based around Alex King’s original style-switcher and is still beta so by all means give it a whirl but don’t be surprised if there are still one or two little bugs. By adding a call into each of your themes you can insert a call in your menu which will create a list of available themes for your visitors to choose from or you can have a drop-down box if you prefer. It is also cookie-based so each visitor’s theme will persist. I think this could come in very handy.