Gyroscopic Investing

I am getting interested in the PP and have some newbie questions, so please bear with me.

What is the role of I-Bonds? Seems to me they can be included in the "cash" category, since they have the pleasant feature of not falling in value when deflation occurs. For this reason, can I-Bonds be included in the cash component of the PP?

In short, yes, I-Bonds can be included in the cash component. Here are two very good threads that speak to that point.

http://gyroscopicinvesting.com/forum/ht ... ic.php?t=0

http://gyroscopicinvesting.com/forum/ht ... ic.php?t=3

I- Bonds are good for the PP, but only if you are certain that they will not be needed for any emergency purpose at least one year after you acquire them. (I am acknowledging that some people use some of  the cash portion of the PP as an emergency fund.)  I- Bonds cannot be cashed until you've held them at least one year.