I find myself in the same predicament. I got the new Marcum Pan Cam and am using it with an IPad mini. I like the system so far, but using it is difficult at best. Today I got excited and dropped it in the slush inside the shanty. So tonight I made a trip to WalMart and found a case that I hope will work. It has ridges that are the same size as the poles in my pop up shelter. So I am hoping that it will lock in snuggly between pole and the fabric. Then the side that actually hold the tablet rotates 360 degrees allowing me to position the display to meet my needs. Tomorrow is the trial run on this so I will let you know how it works, or if I need to make some modifications.