Itronix., a General Dynamics company, launched the GoBook XR-1, a rugged wireless notebook. It uses Intel’s mobile dual-core processor, the Core Duo 1.83GHz, and comes with a 40 MB or 80 MB 5400 rpm SATA hard drive, a power-management utility, an integrated Ethernet 1GB LAN and Microsoft’s XP Professional operating system. It will ship in Sept. 2006.