Wow, I had never considered this! Although, as "UnFleshedOne" points out, that would imply a fixed geometry (not necessarily a grid) wouldn't it? We don't know that angles are limited within a "Planck volume," so they could be continuous (not that anything else seems to be!)
If this were true though, I'd think it would give us a fascinating tool!
If this were true though, I'd think it would give us a fascinating tool!