My "metric" for when WPF is truly "ready to go" is when there is a menustrip control available in Visual Studio. Without that, from my perspective, it's still "under construction" a bit, in comparision to winforms. This isn't a technical argument, just a personal preference.
So my question is: when will stock Visual Studio come with a WPF menustrip control? For example, is this going to be in the final release of Visual Studio 2010?