I'm sitting in the TechStars first 5 minute pitch practice. As a first start to TechStars presentations, the teams are doing a good job. That said, the teams need to follow the basic rules of business presentations :
i) Rule 1 of presenting: Tell them (the audience) what you're going to tell them
Tell them
Tell them what you told them

ii) Rule 2 of presenting:
Show don't tell - a picture is worth a thousand words

iii) Rule 3 of presenting:
Tell a story about their company that illustrates the problem that ou're solving. Real stories allow audiences to understand and engage.