- Symbian Series 40 - Older Nokia, Foma, Motorolla, Panasonic, Sendo, Siemens, Sony Ericsson and UIQ
- Symbian Series 60 - in Nokia smart phones and many others including FOMA, LG, Nokia, Samsung, Sony Ericsson and UIQ
- Windows Mobile - in Samsung, Palm Treo W, HTC, Motorola, Psion, i-Mate, Intermec,
- RIM Blackberry - What OS is this underneath?
- Apple iPhone OS - iPhone
- Linux - Motorola, Grundig, HTC, NEC, Panasonic, Samsung, big list here
- Google Android - Not out yet, coming to HTC at least
It looks like Symbian is currently dominant but clearly it's ageing which is presumably why Nokia bought Troltech. One year after launch, Apple has done well to get to 7% of market share.
Funny how it's hard to figure out the OS on many low end phones. I've used a Linux phone but couldn't tell really.
Had a chat about this on ABC Radio National this morning with Mark Bannerman.