Hill Climb Racing 2 - Sequel to the most addictive and entertaining physics based driving game ever! And it's free!
Xmind - Xmind is a brainstorming and mind mapping application.
Alto's Adventure - An endless snowboarding odyssey
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Happy Wheels - The fun Happy Wheels game features several levels that you have to get through using a variety of wheeled vehicles. There are obstacles that are quite challenging. Read more about Happy Wheels.
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.