Sitecore SPEAK Sitecore.app undefined in Sitecore 7.5 and Sitecore 8
When debugging Sitecore SPEAK in Sitecore 7.x (query string ?sc_debug=1) you could access and debug your SPEAK application in your console browser via Sitecore.app. When trying this in Sitecore 7.5 and 8 you will get "undefined" returned.
In Sitecore 7.5 and 8.x Sitecore.app has been moved. The new namespace is Sitecore.Speak.app.