Today appeared a Nokia phone in the Global Certification Forum list we have somehow heard about before - the Nokia 909.1. While it was initially rumored that last week's announced Lumia 1020 might be called Lumia 909, last week we have officially learned that this wasn't the device name at all. Nevertheless, the Nokia 909 name is back, now even certified, and it's definitely something high-end since it supports quadband GSM/GPRS/EDGE, quadband UMTS/HSPA+ and quadband LTE! LTE isn't anything Nokia's range of Asha phones was supporting so far, so it's either a high-end S40 Asha feature phone or it might be indeed another Nokia Lumia Windows Phone (or maybe something totally different?).
However, it should also be mentioned that the GCF is typically not listing Nokia phones under internal code names but it's rather using the device names. Therefore Lumia phones are either listed as (Nokia) Lumia XYZ or just as XYZ without the use of the Lumia.
To go even further, back in April the WiFi Forum has already certified a 909.1/RM-875 as "multi-mode Smartphone (Wi-Fi and other)" with support for WiFi a/b/g/h/n and 2.4/5 GHz bands.
When we contacted a Nokia spokesperson he denied to comment; which might be another indicator that the Nokia 909 is indeed a yet unannounced (smart)phone. But one thing is for sure - with LTE it must be something smart since Voice over LTE is still in development.
Cheers ~ Arne