Icon Babel – Transcend language barriers using icons

This is an app I made for breaking communication barriers. It's a simple, yet powerful idea. Use icons to communicate with anyone, regardless of which language they speak. The UI is simple enough that my three year old can use it. The UI has zero words, so the UI is internationalized out-of-the-box. Let me know what you think. All feedback is welcome. Positive or negative. Thanks!