Nexus One device had a Broadcom chip labeled BCM4329EKUBG (which supports Wireless N) and a FM transmitter. Both features were not present when the Nexus One launched on January 5th, but it looks like each is close to being implemented in Android 2.2. Broadcom and Google released updated drivers for the WiFi chipset which appear to enable Wireless N.
Nexus One with Wireless N and FM Radio Support via Android 2.2 Update (Video)
Source: (androidandme.com)
BCM4329 – Low-Power 802.11n with Bluetooth® 2.1 + EDR and FM (Tx and Rx)
Broadcom chip BCM4329EKUBG Features:
- Supports 802.11n performance and range features, such as Space Time Block Coding (STBC), Short Gual Interval (SGI), A-MPDU aggregation, Block Ack, Greenfield, RIFS
- Bluetooth Core Specification Version 2.1 + EDR compliant with provisions supporting future specifications and Bluetooth Class 1 or Class 2 transmitter operation
- Offers one of the industry’s most advanced Bluetooth/Wi-Fi coexistence technologies to ensure the best possible user experience
- Full featured, on-chip Power Management Unit supporting direct battery (2.3V to 5.5V) connection
- Broadcom’s most integrated 65 nm single-chip combo device with single-band (2.4 GHz) 802.11b/g/n or dual-band (2.4 GHz and 5 GHz) 802.11a/b/g/n, plus Bluetooth 2.1 + EDR and FM receiver and transmitter features
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[...] a slightly revamped home screen and access to all of the Nexus One’s system RAM. Some harder to believe rumors have Google enabling the Nexus One’s latent wireless N and FM radio capabilities. [...]