Isn't it more logical (and closer to native) to have a control panel applet for each category/tab already in winecfg instead of having one winecfg applet? Otherwise you're just moving winecfg to another place.
Well, my plan, as mentioned before in another thread, is to split up winecfg a bit, but there's only so much you can do this, due to the fact that most of the tabs in winecfg can work on a global or application-specific basis. As far as I can tell, the Desktop and Sound tabs are the only bits of winecfg that are global-only and as such can be split from the rest in this manner, and this is something I would be considering for a "next step" for this applet. However, I figured a simple applet that showed some icons that a) let us actually have something in the control panel and that would b) provide a more user-friendly interface to these tools for users would be a good start, rather than coming along straight away with a large patch that hacks up winecfg!