The story
In January 2002, Palm, Inc. set up a wholly owned subsidiary to develop and license Palm OS, which was named PalmSource in February. In October 2003, PalmSource was spun off from Palm as an independent company, and Palm renamed itself palmOne. palmOne and PalmSource set up a holding company that owned the Palm trademark.
In January 2004, PalmSource announced the successor to classic Palm OS called Palm OS Cobalt. However, it failed to gain support from hardware licensees. That December, PalmSource acquired China MobileSoft, a software company with a mobile Linux offering. As a result, PalmSource announced that they would extend Palm OS to run on top of the Linux architecture.
In May 2005, palmOne purchased PalmSource's share of the Palm trademark for US$30 million and two months later renamed itself Palm, Inc. As part of the agreement, palmOne granted certain rights to Palm trademarks to PalmSource and licensees for a four-year transition period. Later that year, ACCESS, which specializes in mobile and embedded web browser technologies, including NetFront, acquired PalmSource for US$324 million. In October 2006, PalmSource announced that it would rename itself to ACCESS, to match its parent company's name.
From Wikipedia’s article on Access Systems Americas, shared under CC BY-SA 4.0.4