Ed Sim, Managing Director and partner at Dawntreader Ventures, an early stage VC firm, talks about the opportunities and pitfalls for startups these days. Sim delves into the opportunities he sees in enterprise Internet and consumer wireless companies. He talks about his distaste for the term "Web 2.0," and his concerns about having a bubbly approach to building companies, now that it’s so easy for anyone to create a startup but hard to cash out