Here's the current yield curve of Treasury Inflation Protected Securities, which means you get the yield plus the CPI.
Looking at this, I can't help but think it's the Treasury equivalent of the Internet bubble from 10 years ago.
I'm not a bond investor but I wouldn't even think of investing in any bond that had a real return of less than 2%. According to the bend of the current curve, the TIPS yields won't reach 2% for another four years.
