Software Build is going to be 2.17.401.2 (UK)
A test version of the firmware has been leaked to a ROM developer, XDA user Football, and they have baked up a ROM based on the firmware. The new update will be 2.05.401.2, a noticeable update (in terms of numbers at worst) over the current 1.29.401.11. The Android version will also be updated to Android 4.0.4, which will by default include some stability improvements. Updated kernels, radios and software drivers are also bundled in.
Early adopters of the aforementioned ROM have been impressed. Users are reporting a better web browsing experience, tweaked auto brightness settings, a smoother user interface and faster unlock speeds. Gaming performance appears to have been improved, along with battery life whilst gaming. It is not clear yet if overall battery life has been improved.
I'm guessing you have the rom on your phone? I don't really want to root my phone due to warranty issues. Would be great if you show us your screen on time whenever you're done for the day and give us a bit of an insight on battery improvements. I've heard about general performance improvements in that rom in all departments but the battery time information is lacking a slight bit IMO.
bro this is actually my feedback! lol