There’s a new jailbreak tool for Windows Phone 7 under development. It’s called WindowBreak and right now you can use it on some Samsung smartphones to enable support for apps that aren’t downloaded from the Windows Phone Marketplace.
Jaxbot, the developer of the project, hopes to add support for phones from different manufacturers.
The tool basically lets you do the same thing you can do with the ChevronWP7 tool — but you don’t have to pay $9 to use WindowBreak.
There’s no app store for jailbroken Windows Phone 7 devices, so right now in order to sideload an app you’ll need to connect a phone to your PC. But you can find instructions for jailbreaking supported devices at the developer’s website.
You can also find more details about the project at the xda-developers forum.