Very good articles on the state of this new technology.

Rackless solar systems
– CertainTeed’s Apollo II solar shingles
– SunTegra
– GAF’s DecoTech system

Solar shingles and tiles
– Luma Solar
– DeSol Power Tiles
– HanTile
– Thin Film Flat SOLARtile
– Tesla’s solar roof

Solar roof
– Forward solar roofs