Ok so after playing with the new leaked sprint radio and cooking up a rom in the kitchen, When I would use internet sharing I would get a Error code 67 .. bla bla bla, if your getting it you will know what im talking about regardless I found a thread in the titan section very short thread on a fix for this.
Just figured I would repost with link there so if others have this issue on thier touch they know the same thing will fix it.
http://forum.ppcgeeks.com/showthread.php?p=217781
The test on the "Extension" data string will be a bit diff on the touch but just get rid of that extension part all together it will then show a Default setting and you should be good.