[Rynant]

The difference between Windows 7 supporting IPv6 and the Nexus 4 supporting LTE is that LTE requires a physical chip that costs extra to manufacture. Why force all users to pay extra for an LTE radio if most users will not see any benefit from it?

[joonix]

The difference is Google will release another Nexus within one year that will likely have LTE. MSFT makes a new Windows version every 4 years or so.