I have a Lumina Icon on Verizon with no upgrade path to a 950 or 950XL. No continuum for me. I'd use the 950XL on ATT as my daily driver for both mobile and computing using a dock and continuum.
Received my Icon on July 25th. Transferred over from the S3 running Kit Kat. Enjoying the experience so far. Have 8.1 DP, waiting for Cyan.i realize I may have to reset back to 8.0.