When attempting to install an .apk from Eclipse, whether to an android emulator or to a physical device (via USB), I get a \"Failed to install *.apk on device \'*\': timeout
I've solved the problem, many months later, by upgrading to a completely new environment. Specifically, a new machine with a fresh install of Windows 8. I've also avoided installing the Comodo suite (I don't know that this was causing the problem).
So while this is not a direct solution to the problem (it's still not clear what was causing it) perhaps it might serve as another example where a workaround or lateral resolution to a problem is sometimes a good last resort option.