The day after PDC10, 150 conference attendees extended their stays for an extra day of Windows Phone 7 app building at the PDC10 Workshop. For most, this was the first time they were able to deploy to actual Windows Phone 7 devices and watch their applications come to life.
This video showcases a few of these workshop participants talking about why they love developing for Windows Phone 7.
If you missed PDC10, it's never too late to get catch up. Start at www.microsoftpdc.com to access on-demand session recordings. Then get going with free tools and more for developing your Windows Phone 7 apps at http://create.msdn.com.