The one included in KR_KT ROM is also included in official 2.2.1, so there is no "stock" and "non-stock" anymore. They're both stock.
One difference I know of is that the newer bootloader enlarges or otherwise takes care of BOOT partition where boot.img is stored, and allows people with bad sector in that partition flashing larger boot.img than the older one.
Stillimages can bebeautiful, but some of you prefer to see animations on your screens. … more
17 Sep 2014
By Tomek Kondrat
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?