Also see The Google Play store, coming to a Chromebook near you (Chrome Blog), which notes "and in Q1 of this year, Chromebooks topped Macs in overall shipments to become the #2 most popular PC operating system in the US"; also see Empower your workforce with Android apps on Chrome devices
"Android apps like Microsoft Corp.’s Skype video calling service, will now work on Chromebooks, filling several gaps that made the computers less useful in the past.Google’s Android and Chrome Operating Systems Get Closer - Bloomberg
The move is the latest sign that Google, a unit of Alphabet Inc., may eventually combine Android and Chrome OS into a single operating system. While the company has said it has no current plans to eliminate Chrome OS, a top Google executive addressed the subject Thursday.
“There’s been a lot of speculation about Android and Chrome OS merging,” said Hiroshi Lockheimer, head of Android and Chrome OS at Google. “Our approach is to take the best attributes of each and share them with the other.”"