Seems that USF1 is now USGPE, at least online, and with the new Force India changing its logo from FI to Fi, both are likely now in-line with FOM's intellectual property holding on F1 and Formula 1. Perhaps there are other reasons too, USF1 was much better sounding, but probably confusing with the USGP, which USGPE is now closer too?? Anyhow, for more confusion and for those that parlez vous the francais you can read more here:

www.go-f1.com/f1-4194-usg...