If you haven’t heard the news yet, the G2 comes pre-loaded with an anti-rooting mechanism which essentially resets the phone and restores the stock software when any changes are made to the phone’s OS.
T-Mobile has issued the following statement regarding their decision to prevent modifying the stock software:
Code-Level Modifications to the G2
As pioneers in Android-powered mobile devices, T-Mobile and HTC strive to support innovation. The T-Mobile G2 is a powerful and highly customizable Android-powered smartphone, which customers can personalize and make their own, from the look of their home screen to adding their favorite applications and more.
The HTC software implementation on the G2 stores some components in read-only memory as a security measure to prevent key operating system software from becoming corrupted and rendering the device inoperable. There is a small subset of highly technical users who may want to modify and re-engineer their devices at the code level, known as “rooting,” but a side effect of HTC’s security measure is that these modifications are temporary and cannot be saved to permanent memory. As a result the original code is restored.
It’s a little early to tell if developers are going to be able to get past this security measure, but when there’s a will, there’s a way.