First off, I'd like to thank Jmz
for sending me the link to this thread. If it wasn't for him I probably wouldn't have even known about this.
Secondly, credit for this method goes to Bin4ry
who created this simple batch file that will root the Kyocera Rise and other ICS/JB phones.
Here are the basics. Doesn't get simpler than this.
1) Download the file ( I used v3 ) and Unzip to your PC.
2) Make sure that you have USB Debugging enabled via settings, Developer Options and plug in your Rise to your PC Via the USB Cable.
3) Run the "RunMe.Bat" file from the directory that you unzipped the file too. Then choose "Option 4 Other" and follow the instructions.
The whole process took about 2 minutes to complete and afterwards the phone was rooted. I'd suggest updating SuperUser as well.
Here is the link: Root MANY ANDROID! [Upd: 17.09.2012] - xda-developers
I'd also suggest making a backup with Titanium until a custom recovery is created for the phone.
As of now, JMZ plans on doing some work with this phone in the near future so be sure to thank him. Also please donate to the people that develop on these phones.
NOTE: DO THIS AT YOUR OWN RISK. THERE IS ALWAYS A CHANCE THAT SOMETHING COULD GO WRONG AND BRICK YOUR PHONE.