Intel is showcasing the East Fork platform at Computex. It is designed to be as small as a typical optical drive, but will feature dual-core Pentium M processors and other features such as wireless LAN.
Intel calls it the new mobile form-factor for digital home. East Fork will basically be a bundle of components with a special brand-name, just like the Centrino platform.
Some people call it a clone of the Mac mini from Apple but there are some differences. The Mac mini is designed to be cheap without offering superior performance, while Intel's East Fork is expected to provide some serious performance with its dual-core Pentium M 'Yonah' processor. But Intel's new form factor will be more pricey than Apple's Mac mini. More details at X-bit Labs