Asus has been making Android tablets with excellent keyboard combos for years with their Transformer Pad TF701T (ZDNet review) being their latest and greatest. HP has a current Android powered tablet with keyboard options in their SlateBook 10.
9to5Google posted some information that shows HP may soon reveal the Slatebook 14 that comes with the Google Play Store and Google first-party apps.
The folks at Notebook Italia discovered a video of the device on HP's website that shows this laptop powered by Android with a quad-core processor, 2GB of RAM, WiFi, Bluetooth, Beats Audio, three USB ports, HDMI-out port, and possibly a SIM card slot for cellular connectivity.
Lenovo has their Ideapad A10 Android laptop, but so far this operating system hasn't proven to be highly desirable as a laptop operating system. Chromebooks are popular, but much of their popularity also has to do with low prices.
There has been talk of some Chrome OS/Android integration and I imagine we will see more about this possibility at Google I/O in June. I prefer Android as my smartphone operating system and would probably enjoy my HP Chromebook 11 more if Android was there instead of Chrome.