I understand the logic, and there's something to be said for being a big fish in a small pond, and the exposure of being one of the first to support the platfor

I understand the logic, and there's something to be said for being a big fish in a small pond, and the exposure of being one of the first to support the platform. But in the face of exploding iPad and Nexus 7 sales, I must admit I'd be pretty nervous investing heavily in touch-focused software for Windows, in the hopes that a market pans out. If supporting Metro without leaving mouse and keyboard users behind is possible, then it might seem more viable to me. The choice between dropping support for Windows 7- and maintaining two code bases raises the stakes for many developers. My understanding is that the only way to support Windows 7- and 8 in a single app is to make it non-Metro. So most developers must then choose between supporting Windows 7 and Windows RT, with the latter unproven.