The first portable computer based on Intel's Centrino Atom chip package is coming in June, although it will be bigger and more expensive than such devices were expected to be.

The Willcom D4 ultramobile PC is manufactured by Sharp and will be priced at ¥90,200 with a two-year data contract.

Intel launched Centrino Atom at the Intel Developer Forum in Shanghai, but only showed prototypes of portable computers based on the new chips. However, Intel executives promised 20 such devices are in the works and will ship soon. The Willcom D4 announced Monday appears to be among those devices.

Centrino Atom was developed for small, pocketable devices based on Linux that Intel calls mobile internet devices, or MIDs. These devices were expected to be priced starting from $500, according to Intel.

Unlike other prototypes that have been rolled out, the D4 is the first Centrino Atom device to be announced with a release date. The Windows-based computer has a 1.33GHz Atom processor, a 5-inch widescreen display, 1G byte of RAM, a 40GB hard disk, and includes support for Wi-Fi and Bluetooth.