By Eric Gwinn, Chicago Tribune Jun. 21--The TV blares another commercial, and there you sit, camped out on the couch. Summer only officially started today, but you already feel it slipping away. Zacks.com submits: Based in San Jose, CA, SiRF Technology Holdings, Inc. is the holding company of SiRF Technology, Inc., which is a fabless original equipment manufacturer [OEM ] of global positioning system [GPS ] semiconductor chipsets, semiconductor-based modules and associated software.Cell phones will soon be banned from all Catholic schools, says Mennen Walker-Briggs, Director of the Catholic Education Board of Management (CEBM).