Are you talking about the cabinet mount? I have a first gen iPad in the kitchen on that very mount. It is not unstable when in use. Granted, if I were to wobble it myself it will, but it is quite stable and when using the iPad it doesn't wobble one bit.[/QUO
Hmmm - thought that I had posted a pic of the removable acrylic iPad rack that I now use in my kitchen -
Info HERE and photo of mine below - just requires installation of 3 small plastic holders below the cabinet (and hidden by the lower face frame); these hold the removable clear acrylic rack - works well!