Xmind - Xmind is a brainstorming and mind mapping application.
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
ActiveWords - Auto correct on steroids
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Zeplin - Collaboration app for UI designers & frontend developers