If you are planning to start your own company, you will find these 12 HD motivational wallpaper and posters to your liking. Never give up! For all entrepreneur, this video on Guy Kawasaki The Top 10 Mistakes of Entrepreneurs is a must watch. The UC Berkeley Startup Competition (Bplan) proudly welcomed Guy Kawasaki to the Haas School of Business. Kawasaki, former chief evangelist of Apple and co-founder of Garage Technology Ventures, explained the top ten mistakes that entrepreneurs make. His talk covered all stages of a startup from inception to exit.