This Google phone T Mobile G1 now costs about 170 dollars. That is a very cheap price for such a good mobile phone. We should get a detailed knowledge about both Hardware and Software efficiencies and feaftures especially when we go for shopping of electronic products.Using this phone seems to be very easy and the first process is to enter your Google account User name and password. If you do not have a Gmail account you can easily sign up for a new one there. Managing contacts is easy and all contacts in your address book in gmail account will be added automatically. Google has enables one login and about sixty seconds away from having your entire world downloaded to you over the aether.The touch screen of this mobile is very modern and beautiful. It has high contrast colours and seems like a cartoon environment that is liked and disliked by some people. Some drawbacks are that It's settings can show only six menu items at a time in the portrait orientation, and Gmail shows a fraction of an email more than that. The current version of Spare Parts has a bug that if you change screen orientation, text size reverts to the default. If you have been using a different mobile provider that is very different from Android you may find it little frustrating till you study all the options involved. For deleting a contact have to press the key long time on the entry. The selection highlight will fade from orange to white, and after a moment, a contextual pop up menu will appear, where you can choose Delete contact. Speaking of long presses, we did have some problems with the G1 being unable to distinguish between a long press and a scroll motion. The instant the phone detects that your finger has moved, it kills the notion of the long press in progress until you lift your finger off the screen and try again. Theoretically that's not a problem, but it's really easy to accidentally move your thumb just a millimeter too far while waiting for a pop up menu to appear, which triggers like a one-pixel scroll of the list instead.

The best Advantage of this Phone is its World class Notification system. This phone has an average looking status bar that appears at the top of basically every screen. To the right, you get the standard information every self respecting phone is going to provide you: time, battery charge, signal strength, data network status, WiFi, and silent mode. To the left side, though, is where things start to get interesting. Over here, any application can place an icon to indicate that something interesting has happened instant messages, emails, voicemails, schedule reminders, SMS alerts. Its home screen facility is more attractive and is made more spicy with the help of many widgets that helps you to check the weather, news, sports scores, your RSS feeds, run a couple web searches and everything possible into that cute little screen.

The mechanism the hinge is built on is fairly robust, allowing you to whip the screen out and up when you nudge it with your thumb.

Alternate key characters are distributed in a reasonably sensible fashion, and you're provided with another "menu" key on the left side, though we rarely found occasion to use it.

On the left side of the phone is a volume toggle -- pretty standard fare -- and on the lower right you've got a camera button. The ability to flip right into camera mode is a nice touch, though certainly not uncommon in phones of this type. Around back you'll find the lens and speaker phone elegantly and angularly placed near the top of the device.

Along the bottom of the phone is HTC's totally meaningless ExtUSB port, which actually can accept micro USB plugs.

The built-in camera can take shots up to (and currently only) 3.2 megapixels. Not a stunning resolution, but certainly not bad.

On the plus side, the lens actually focuses and can snap fairly close shots, allowing for near-macro pictures depending on conditions.

A quad-band EDGE, dual-band HSDPA phone (1,700/2,100), the G1 works on T-Mobile's 2G and 3G networks here in the U.S. and on high-speed networks overseas.

The speakerphone is loud and clear. But the phone's mic layers your voice in with a lot of background sound on the other end.