First off I know very little on this subject so take my view on this with a grain of salt. The Levil brand of avionics looks interesting and especially the BOM wireless product. The BOM looks like a very simple way to make a cheap/easy panel and since it uses an iPad it shouldn't look dated in a few years like some of the other options. Here's a link to a video about it and their website. What you you guys think?

https://youtu.be/Te9S2DETjA8

http://aviation.levil.com/home.html