Logitech this morning previewed its X-240 speaker set, a unique approach to the problem of tethering handhelds to their host computers. The central control unit of the system, while providing quick access to volume controls, also incorporates a universal cradle that charges and synchronizes most handhelds through a USB connection to the host Mac or Windows PC. Special adapters are included for third, fourth, and fifth-generation iPods as well as the iPod nano and Microsoft's Zune; the X-240's dock is also said to work with cellphones, PDAs, and other portable hardware. The 2.1-channel system delivers 25W of sustained power and will ship in April for $50.

A second announcement also revealed the Cordless MediaBoard for Sony's PlayStation 3. Opting for RF wireless instead of the built-in Bluetooth of the game console, the keyboard links to the PS3 with a USB dongle and provides a full-size keyboard in addition to an integrated trackpad for computer-like control when browsing the Web or navigating the PS3's crossbar menus. The MediaBoard will be ready by February for $80.