As we all know there are three major OS in the PDA market: Palm OS , Pocket PC 2002 made by Microsoft and Symbian which is a consortium created by Ericsson, Nokia, Matsushita (Panasonic), Psion , Sony Ericsson and Samsung
| Palm OS |
The companies that have Palm OS licenses are:
- PalmOne
- Sony
- Handera
- Kyocera
- Acer
- Samsung
- Symbol
- Garmin
| Microsoft Pocket PC |
The companies that have Pocket PC licenses are:
- Casio
- Compaq
- Hewlett-Packard
- Toshiba
- NEC
- Asus
- Audiovox
- Intermec
- Symbol
- ViewSonic
| Symbian OS |
The companies that have shares in Symbian OS are:
Company |
Shareholding |
| Ericsson/ Sony Ericsson | 19.0% |
| Panasonic | 7.9% |
| Nokia | 32.2% |
| Psion | 31.1% |
| Samsung | 5.0% |
| Siemens | 4.8% |