The Australian developer Chris Walshie has already been able to "run native unmanaged code" on his stock WP7 device, giving hope that easy root access and eventually a jailbreak is upcoming.
It seems that the Samsung Network Profile application in WP7 runs on native code (and not Silverlight-DRM code), leaving an opening.
After looking deeper:
(Hounsell) documented some interesting characteristics of the application that gave it its native capabilities – most notably a DLL called “Microsoft.Phone.InteropServices”, which if poked the right way provided COM access.
Walshie, using that idea, was able to gain root access by deploying a WP7 app using the developer sideloading process.
Expect a jailbreaking process and a third-party app store in the near future.
Written by: Andre Yoskowitz @ 12 Nov 2010 23:34
