A leaked Nokia document obtained by Smartphone France specifies the feature differences between Windows Phone 7.8 and Windows Phone 8. Both versions are due in the coming months; Windows Phone 7.8 will be available to current Windows Phone 7(7.5) devices while Windows Phone 8 will bring a new generation of devices.

From the look of the document and the way it is formatted, it seems features are either green-lighted “OK” or “NOK”, meaning not included. The customizable lock screen feature on Windows Phone 7.8 is marked as “TBC” which we assume indicates something along the lines of To Be Calculated/Completed.

This document is definitely not comprehensive and most likely lists features only of interest to Nokia for future device development. With that in mind, here is what won’t be available on Windows Phone 7.8 based on the document:

OTA updates

NFC

Micro SD

Real Multitasking

Application deployment/development for Windows Phone 8

IE 10

Multi-core processors

Ecrans WXGA/720P

Wallet

Secure Boot & Encryption

Device Management

Company Hub

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