BlackBerry announces 7-inch PlayBook tablet, more heat in market now

RIM has just announced their iPad tablet competitor, the BlackBerry PlayBook. They’re marketing it as the world’s first professional tablet and the specs look great, nearly as though it was specifically designed to counter-program the iPad. The tablet has a 7-inch screen with 1GHz dual-core processor. The device consist of 1080p video with HDMI and…