Did MSFT Work Toward Muti-platform Unification Already Start "Ecosystem Across All MSFT Devices?

Becasue all the recent released WP8 Xbox Live games require 1GB of RAM and 2GB of space to install. Find below the recent WP8 Xbox Live games File size: 1. The Amazing Spider-Man file size 565MB (requires 2GB of space to Install). 2. Real Football 2013 file size 809MB (requires 4GB of space to install). 3. Asphalt 7 Heat file size 878MB (requires 4.7GB of space to Install). I think the up-coming Xbox Live Games and MSFT apps are based on Windows Blue.