Downloads of Microsoft's Windows Phone Developers Tools is going strong. Microsoft is reporting that since MIX10 over 200,000 downloads of the Windows Phone Developers Tools have occurred. Additionally, registration for the live WP7 training course is rather healthy as well. According to Brandon Watson, the number already has a comma in it.
Call it excitement, curiosity, or just simple interest the development community is taking note of Windows Phone 7. From the get-go, the development community was a key component to the success of WP7. Based on the numbers that component appears to be very healthy.