The Airlife 100 will be subsidized through Telefonica in Europe and Latin America. It should be in European stores this spring, but there's no information about US availability. That said, most expect a US carrier like AT&T or T-Mobile to sell the smartbook, and it could carry the HP Mini branding. Pricing also hasn't been disclosed, but it will probably vary between providers and contract terms.
From the images, the Airlife 100 looks pretty sleek -- almost like a miniature MacBook Pro -- but a convertible hinge would have been a nice touch.