Tech terminology check: Is it Windows Phone or Windows phone?

[Windows Central]

Some people write Windows Phone (capitalized) while others write Windows phone. Some say Windows Mobile, and others say Windows 10 Mobile. What gives?
Microsoft's Windows-on-phone strategy has undergone so many transitions during the years the lingo surrounding the subject has become a tangled web of names that can make effective verbal or written communication about the subject a challenge.

Full story from the WindowsCentral blog...