FrostyTheSnowman released a new revision of his 360 Modification USB Drive(info).

What’s new/fixed in v1.6:
* Removed manual firmware dump check screen (due to keyboard incompatibility)
* Added firmware dump validation scripting (to replace manual checks)
* Added ‘Advanced Options’ menu
* Added direct custom firmware flashing menu for Samsung/BenQ/Lite-On drives
* Corrected USB Boot Drive Letter detection
* USB Drive can now be created with either FreeDOS or MS-DOS (compatibility fix for older PCs)

[xbins.org]