Microsoft’s Zune HD has finally been officially unveiled this week.  Packed with a beautiful OLED touchscreen, a smooth accelerometer, and shiny new UI, this new version of the Zune looks like it may creep closer in design, feel, and sales to its highly successful competition, the iPod.   No other information, such as price, has been disclosed.  Check out Engadget’s hands-on pictures and Gizmodo’s video hands-on.  For the first time, Microsoft has me excited about its Zune hardware.  With rumors of possible Xbox 360 integration, the Zune HD may just make its big break in the MP3-player market when it launches this fall.