To tell you the truth, I've followed VMW since it went ipo two years ago and still don't know how the technology works. But having spoken to several IT persons who rave about their product, I decided to put it on radar.
Recent news of a Google engineering director, who originally came from Microsoft, having taken a position in the company and a recent upgrade makes me want to own this one right now for the long run. I will start accumulating a position today. Earnings is next week and I will finish off the last batch buying right after earnings.
VMW is in a hypergrowth phase and raking in lots of cash. Main competitors include Microsoft and Oracle, but VMW still holds 80% market share.