For those that might want it, for testing out the Wifi Tether that stinebd was wonderful enough to figure out for us.
http://forum.xda-developers.com/show...postcount=5096 Here is the latest rootfs.img patched with MrPippy's RIL Library modifications. Just extract and copy it over your existing. This will preserve your data for CDMA and give you the latest changes to the rootfs.img. Make sure you are on the current kernel.
Enjoy!
I should note, use at your own risk, stinebd nor I are responsible for any data charges you may incur with your provider. Hopefully you are just seen as phone traffic, but you have been warned!