n the first update to Windows Phone 7, Microsoft is planning to block ChevronWP7, which allowed users to unlock any retail Windows Phone 7 device for application side-loading without having to pay $99 per year for a WP7 marketplace account. The update, which is slated for release this month, will also introduce copy and paste functionality, among other improvements. ChevronWP7 was discontinued less than a week after its release about two months ago. ChevronWP7's three developers, Long Zheng, Rafael Rivera, and Chris Walsh were approached by Brandon Watson, Director of Developer Experience for Windows Phone 7, and decided to kill their app.