Intel's Atom processors designed for netbooks could be on their last leg, with analysts saying that the chipmaker could be tweaking its product road map as PC sales tumble and tablet adoption widens. Intel's most recent Atom processor targeted at netbooks, code-named Cedar Trail, may not be refreshed to its latest generation, analysts said. Netbooks are being kicked to the curb after a few years of success and Intel may be looking at an upcoming tablet-optimized Atom processor code-named Bay Trail to replace the specialized netbook chips, they said.