Old thread, but never did get any answers as to whether it will work through a Seidio case. I'm thinking about gettin the Seidio Innocase Surface case. I believe these are thinner than the other Seidio case. And the earlier posts did not specify exactly which Seidio case was tried. I'm hoping the Surface case is thinner and that the magnent/metal piece will work through the case. Anyone tried that specific case with the Cellet? Also it seems you wouldn't need the 3M tape if you put the metal piece inside the case. If the case fit is snug enough, it should hold the metal piece in place. That should cut down on thickness some.
If I can't make the Cellet work putting the metal piece inside the Seidio case, what are other options? Will the 3M tape hold it on the outside of the case? Even if it does, that doesn't sound like a decent looking option. Did anyone try it without the metal piece (since it was mentioned that the Droid X battery cover is made of metal)?
Also wondering if anyone has tried to remove the 3M tape from their dash? I plan to install it on the vinyl textured part of the dash. But I do want to be sure that if I don't end up liking it, or it doesn't work as I hope, that I can remove it without any damage to the dash.
Did anyone try hiding larger magnents behind the dash? That sounds like an interesting idea. And would make for a really clean install.