Palm’s chief executive on Tuesday reiterated the company’s support for its namesake operating system, even as the company readies its first Windows-based Treo. Palm announced in September that it will soon start selling a Windows-based Treo, a break from its historical exclusive use of the Palm OS. Palm said at the time that it would continue to develop new handhelds and phones using the Palm OS, but concerns have lingered, particular as the developer of the Palm OS, PalmSource, is in the process of being acquired by Japan’s Access. Palm also recently signed a deal that will allow Treo phones to connect to Research In Motion’s BlackBerry servers.