7.8 will be available for current Windows Phone devices, including popular devices like the Nokia Lumia 900.
Windows Phone 8, on the otherhand, will be deployed on newer and more powerful devices.
The following is missing from 7.8:
Support for screen resolutions higher than WVGA
Internet Explorer 10
Multi-core processor support
Windows Phone Wallet
MicroSD card support
Secure Boot and Encryption
Check the document here:
Written by: Andre Yoskowitz @ 13 Aug 2012 21:23