keywords: palmsource os cobalt oses mobile
text: PalmSource unveils Cobalt 6.1 OS PalmSource will ratchet up the competition among wireless OS vendors this week by announcing Cobalt 6.1, the latest version of its mobile operating system. The main emphasis of the new PalmSource OS is on wireless connectivity, putting it on a par with Microsofts Windows Mobile and Nokias Symbian mobile OSes.