You better think twice before using the ChevronWP7 software to jailbreak your Windows Phone 7 device. The ChevronWP7 software tricks the operating system into registering itself as a Windows Phone 7 developer device rather than with Microsoft directly. Microsoft charges $99 per year to load developer applications. Hackers have been using ChevronWP7 software to bypass the Windows Phone Marketplace completely.
Those who jailbreak the devices with ChevronWP7 had the ability to download the source XAP files from an ATOM XML feed.
Below is a statement made by a Microsoft spokesperson:
?We anticipated that people would attempt to unlock the phones and explore the underlying operating system. We encourage people to use their Windows Phone as supplied by the manufacturer to ensure the best possible user experience. Attempting to unlock a device could void the warranty, disable phone functionality, interrupt access to Windows Phone 7 services or render the phone permanently unusable.?