There have been various devices that were effectively multiple devices in one package with one device being able to be detached to perform its own function. One of these devices that came to my mind was Hitachi’s TRK-W1 boombox of the early 80s. This was a high-quality radio-cassette unit with two cassette transports but one of the transports in this unit was in fact capable of becoming a cassette Walkman once it was detached from the main unit and effectively combined two portable-audio paradigms that were underscored through that time period.
ASUS has applied this same concept to the Transformer Book V detachable laptop which has a separately-detachable smartphone. Here, you had a 12” detachable “hybrid” laptop running Windows 8.1 which could become a tablet one moment and a laptop the next like with the HP x2 series. But you could clip a supplied 5” Android smartphone in to the back of the tablet to provide for access to the mobile broadband service.
The tablet could run Windows 8.1 or, with the phone attached, could run Android 4.4 KitKat in a “virtual-phone” window or run as a full-on Android tablet / laptop. It has 4Gb RAM and 128Gb solid-state storage but has a 1Tb hard disk in the battery-less keyboard attachment. The phone would have 64Gb of its own storage and 2Gb of its own RAM. But there is a limitation that each operating system can only use its own storage space.
Who knows when ASUS would officially launch it with many people looking at it housed in a glass showcase. As well, who knows if this would he launched to all of the markets but ASUS are showing that a device integrating Windows and Android in all the useable form factors can be made available.