Microsoft was kind enough to release the software development kit for Windows Phone 7 Series on Monday, and although there was some fun to be had by scrolling around and exploring, much of the cool stuff the company showed off at MIX last week is not included -- or is it? As it turns out it's in there; only a little help is needed to unlock and all those magical hubs start them spinning for your enjoyment, including a few things not seen before. Most notable? A comprehensive looking file explorer and even a task manager, something a bit curious given the OS's