In answer to a previous question
I confidently said:
My personal practice is always to have Mobile Web environment in my project and then choose that from the Console. This loads the application in the browser-based Mobile Simulator that you can tailor to fit your target form-factor. This has a "Go/Refresh" button that immediately reflects your edits.
I am about to try a later version of Studio, thought it was worth asking that the referenced question had identified a defect.