While the mobile computing industry has been focusing on whether a federal judge will disallow BlackBerry service in the United States, there is also uncertainty surrounding the future of the Palm OS after PalmSource’s acquisition by Tokyo-based Access Co. Ltd. last month. PalmSource officials insist there is a future for the veteran handheld operating system, but some industry experts say deploying Palm OS-based handhelds is risky. Access, which is best known for its NetFront cell phone browser, has yet to provide a detailed road map for Palm OS. Adding to the concern is the growing support for Microsoft’s Windows Mobile operating system. Handheld hardware maker Palm has licensed Palm OS through 2009 and is still posting jobs for Palm OS developers on its Web site. But, at the same time, the company plans to ship a Palm Treo based on Windows Mobile next year.