We mentioned Sharp's W-ZERO3 for Japanese mobile provider Willcom the other day, and briefly mentioned W-SIM.

ENGADGET: A closer look at Willcom's W-SIM

Son has proven adept at breathing lift back into spent businesses, riving Vodafone Japan, Japan Telecom and Willcom, through aggressive pricing and marketing.

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And with Willcom experimenting with Android, don't be surprised to find this released in an alternate form later in the year or early '09.

ENGADGET: Willcom's D4 MID pumps Vista on Intel Atom, into our hearts

It is a complete cellular package (modularized PHS, technically), and Willcom says it's the smallest in the world at 25.6 x 42.0 x 4mm (1 x 1.65 x 0.15-inch).

ENGADGET: A closer look at Willcom's W-SIM