open phone
n.— «The larger movement of cell phone tinkerers has come to be called Open Phone, Patel said. It’s modeled on the open source movement, which advocates free public access to software code, so individuals can make improvements on their own.» —“New can-do club aims to build a better cellular phone” by Jessie Seyfer Ventura County Star (California) May 29, 2006. (source: Double-Tongued Dictionary)