While we weren't expecting to hear very differently, Panay confirms that Microsoft is working on multiple future generations of Surface products.

ENGADGET: Microsoft shows Surface prototypes, teases the tablets that might have been

Those plans include robust, multiple barriers between pressure regimes and the surface.

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Microsoft had considered multiple PC form factors before settling on Surface, Panay says, and the tablets didn't always have that sharp-angled design: the firm tried curved backs before deciding that the flat surfaces were more reassuring in users' hands.

ENGADGET: Microsoft shows Surface prototypes, teases the tablets that might have been

Its delivery method is based on a well-characterized, FDA approved biodegradable chemical platform called PLGA. The company's nanoparticles incorporate a high density of attachment sites on their surface, enabling them to carry out multiple functions--like targeting tumors, enhancing diagnostic images, treating diseased tissue or concealing the whole package from the body's natural defenses.

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