Bondera Tile-mat is a self-bonding sheet membrane that eliminates thinset mortar or mastic when doing tile work. It is very easy to use, all you have to do is peel the plastic shield on the back side and press it down, it bonds immediately to almost any surface. Then you apply tile to the surface by simply peeling the protective plastic on the front starting from the corner, and apply the tile, once tile is aligned, press harder for the stronger bond. The product is still new, not many contractors used it yet, but for DIY project is a nice try, especially when doing a smaller area like a back splash,etc.
You can obtain more information at Tiling with Bondera