My latest paper “Calculating nonadiabatic pressure perturbations during multifield inflation”, written with Adam Christopherson, has now been published in Physical Review D as Phys. Rev. D 85, 063507. The DOI is 10.1103/PhysRevD.85.063507 and if you want to get the (freely available) arXiv version the number is arXiv:1111.6919. This paper investigates the isocurvature or nonadiabatic perturbations during inflationary expansion with more than one field. We performed numerical simulations using Pyflation version 0.