Possibly no WP8 on Verizon because Microsoft forgot to implement a basic feature necessary for CDMA phones

http://www.dailymobile.net/2012/10/16/daily-mobile-exclusive-wp8-phones-could-be-delayed-or-even-canceled-on-verizon/

This isn't spyware, as some new sources (particularly pro Windows Phone news sources) are trying to twist it. This is a crucial piece for both enterprise (a large portion of Verizon's customers) and CDMA compatibility.

Read this for more details:

http://www.reddit.com/r/technology/comments/11qdcp/microsoft_refuses_to_install_verizon_spyware_on/c6oq3zl

This is a large reason why it took so long for WP7 CDMA phones to be released, and I expect a similar situation for WP8 as well.