SiRF

OHA member SiRF has deployed a press release indicating that "...it will rapidly implement key end-to-end location-awareness
features needed to enable mobile devices powered by the Android(TM) platform to provide an optimal location awareness experience for consumers." (Emphasis mine.)

In case you were concerned it wouldn't be rapid enough.

SiRF is actively working on the Android platform to include some of the more innovative features of Secure User Plane Location (SUPL), a
standards-based protocol that allows a mobile handset client to communicate
with a SUPL Location Platform (SLP), including transport layer security
(TLS) for location privacy and multiple session capabilities to provide the
most compelling user experience. SiRF is also implementing support for
Android-based assisted GPS (A-GPS) handsets, including mobile station based
(MSB) and mobile station assisted (MSA) positioning methods to facilitate
the Android platform passing Open Mobile Alliance (OMA) and 3GPP
conformance testing for third-party certification.

SirF is the maker of the SiRFStarIII GPS microcontroller chip, which is much loved for its ability to maintain a signal in dense (urban, forested) environments. Which basically means that, whether you're lost in the sunless bowels of New York City or the misty heat of the Amazon rainforest, Google will be able to point you to the location of the nearest pizza place.