I'm not a fan of gadgets or gizmos. I'm a firm believer in keeping it simple - A stick, a string and a fly. However for the past two years I have taken to carrying a fly removal gizmo, and as a result have not had to touch a single fish in that time. This thing works like magic. The only limitation, you have to use it over water (i.e. while wading), since the fish falls right off the hook. I think using this gizmo is in the best interest of the angler, and more importantly, the fish. The only downside, in order to make one, you will have to drink a bottle of wine.
p.s. I didn't invent this, I did see a similar design from which I fabricated the one I use.