Microsoft might be "all in" on tablets (here and here), but it's Linux that will dominate this new category of device, according to latest research.
ABI senior analyst Victoria Fodale said in a statement. "The number of Linux-oriented initiatives recently seen in the mobile industry indicates that Linux will be a key technology in the next generation of netbooks, media tablets, and other mobile devices."
There is much more Linux around than people know of. Open just about any ADSL router, firewall, Wifi access point or IP camera and you'll see it is already running on some sort of Linux variant. In situations where the developers are able to chose, Linux has won from the commercial OS variants. On versatile computer systems like servers, desktops and notebooks where the customer can chose, there is still massive competition from the operating systems with a good marketing machine.
On most current mobile devices hardware and software are so integrated that it is difficult to chose another generic operating system and get the same functionality as you had with the out of the box hardware-software combo. That makes this market particularly interesting for Linux.