The app icon should be strong enough to standalone outside of the context of the icon, and be uniquely identifiable by itself from other app icons.
We're looking for a an design icon that is on the lighter side and neutrally masculine and neutrally feminine or slightly feminine in design. Lighter colors are ideal, we've experimented with the ideas of yellows / greens / blues but your take on the idea is great. The mission of the company is a greater unification of the world through connecting people based on what unites us, and not on the things that divide us. Be creative! Some ideas could be icons featuring people, the planet, "unification", no division, etc - be creative!
We love the abstract / fluid shapes that come from the ideas behind concepts like water, liquid, nature, cohesion effect of water, the planet and it's interconnectedness with life, etc. A gentle / flowing shape is preferred over a sharp / hard shape in the icon.