The BlackBerry Curve 8520 has been launched. Gemini is the coded name of BlackBerry 8520. Its cost is very low as compared to other BlackBerry cell phones so it was a new experience for both business and consumers. I have used this phone; in my opinion it's a nice phone. It has a compact and slim body as compared to BlackBerry Curve 8900. In fact, the both are of the same size, but the 8900