133w ago - Today stoker25 via PSX-Scene has released CFWLoad v1.0 with source code, which he states is essentially a clone of JaicraB's PS3 USB Custom Firmware Loader with a few differences for people with USBs that have different numbers.

Download: CFWLoad v1.0 for PS3

For those interested in modifying the PlayStation 3 registry files, previously he released a PS3 Registry xRegistry.sys File Editor followed by PS3 Multi Tool v0.2.

To quote on his latest release:

It's a clone of JaicraB's USB FIRM LOADER, with a few differences for people like me with USBs that have different numbers.

Features:
• Choose what USB to use!
• Redirect dev_flash to usb
• Redirect app_home to usb
• Dump LV2 kernel and mount points
...along with all the source code that does it