the spherical "strings" you are describing may already be catered fro in string theory by the concept of Branes... I am still of the opinion that string theory is not actually a theory of physics, but a philosophical construct of the way in which our minds interpret the spatial environment. It's not that things are made up from pieces of string, but rather that our brains probably have a limit in terms of how accurately we can measure things (i.e. the planck length is the lower limit of the brain's power of interpretation), so philosophically speaking, it appears to us that everything should be made up from strings.
Anyway.... I've been trying to explain this in a paper for the past 18 months, and I still haven't succeeded, but I am pretty sure that there is a link between Pi, the fact that we see 3 dimensions of space, and the fact that mathematics (string theory) says there should be 11.
DG
