Nexus One the Google phone developed on Android platform by Google and HTC. The phone which is built on android 2.1 has access to more than 18,000 applications. You can enter text without typing. Price tag is $529 without service and $179 with 2 year contract from T-mobile(USA).

Nexus One Hardware Features

* Display: 3.7" AMOLED 480x800 WVGA display
* Thinness: 11.5mm; Weight: 130g
* Processor/Speed: Qualcomm Snapdragon™ 3G QSD8250 chipset, delivering speeds up to 1GHz
* Camera: 5 megapixel auto focus with flash and geo tagging
* Onboard memory: 512MB Flash, 512MB RAM
* Expandable memory: 4GB removable SD Card (expandable to 32GB)
* Noise Suppression: Dynamic noise suppression from Audience, Inc.
* Ports: 3.5mm stereo headphone jack with four contacts for inline voice and remote control
* Battery: Removable 1400 mAh
* Personalized laser engraving: Up to 50 characters on the back of the phone
* Trackball: Tri-color notification LED, alerts when new emails, chats, text messages arrive

Software

* Google Maps Navigation: offering turn-by-turn driving directions with voice output.
* Email: multiple Gmail accounts; universal inbox and Exchange support.
* Phone book: aggregate contacts from multiple sources, including Facebook®.
* Quick Contacts: easily switch between communication and social applications.
* Android Market: access to more than 20,000 applications.

* Enter text without typing.
* Use a voice-enabled keyboard for all text fields: speak a text message, instant message, tweet, Facebook update, or complete an email.
* Tell your phone what you want it to do.
* Search Google, call contacts, or get driving directions by just speaking into your phone.
* Take personalization to the next level.
* Dynamic, interactive, live wallpapers react to the touch of a finger.
* More widgets and five home screen panels allow for further device customization.
* Capture camera-quality pictures and video with your device.
* 5 megapixel camera includes LED flash, auto focus, zoom, white balance and color effects.
* View pictures and Picasa Web Albums in the new 3D Gallery.
* Record Hi-Res MPEG4 video, and then upload to YouTube with one click.
* Read your voicemail messages.
* Get transcribed voicemail with Google Voice integration, without changing your number

Price:-Nexus One is initially available from the Google web store in the US without service for $529 or starting at $179 with a two-year contract from T-Mobile USA