Here's an interesting article about the use of open source software in the mobile space.
It has some informative tables about that topic.
There's a table on "who’s who in mobile open source".
Organizations / technologies mentioned in it include:
Google’s Android, Symbian, Moblin, OpenedHand, Nokia, Trolltech, Qt from Trolltech, Purple Labs, Wind River, MontaVista, OpenMoko, Ubuntu Mobile, Sun’s Java ME, Apple’s WebKit, Firefox Mobile, LiMo Foundation.
I had blogged about Moblin, OpenedHand and Nokia's acquisition of Trolltech earlier, also about Qt a while ago.
The article also has another table on "where open source is used in mobile phone software" - "where" meaning at what level of the mobile software stack.
That table includes these levels:
- Kernel + base operating system
- Application environments
They (VisionMobile) say their blog has been voted as the best blog in the Mobile Comms category by Electronics Weekly Magazine.