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Well, the first manufacturer to use Android is "HTC" , HTC dream was the first official device to run Android on 22nd October 2008.
The first Android powered device came onto the market on 22nd October 2008.
On Sprint I know first hand that is not.
The first Android smartphone (HTC Dream) was sold in 2008.
market android com/account then sign into your Gmail account.If you do not have a Gmail account, sign up at mail google comOnce signed in:There are three possible reasons why an Android device might be missing from your list of devices on the Android Market website:You're not logged in with the primary Google account associated with your device.You haven't accessed Android Market from your device recently.Your device is running Android 1.5The account you're signed into when using the Android Market website must be the same as the primary account that was used when you first set up your Android device. When signed in to the Android Market website, only devices associated with the same primary account will be listed when attempting to install an app.To see the accounts associated with your device, click 'Settings' > 'Accounts & Sync'.You'll need to sign in to the Android Market website using the username and password of the Google Account.Then your Android will be set up.
First log in to your Google+ account. Then just make your comment.
HTC
You can start by developing it on your computer first. Then if you believe it will actually work on your phone, you can go to developer.android.com to learn how to apply it to your phone, and then market it through Android applications.
Android Inc. at first was founded by Andy Rubin, Rich Miner,Nick Sears and Chris White. At first they have plans to develop it as an, Operating system for Digital cameras but later on they learned that its doesn't have that much big market to target, so they change their plans and start targeting Smartphones and later on it was overtaken by Google Inc.
You'll first need to get root access to your phone. Once root is enabled, install android-wifi-tether from the android market and you'll instantly have a free 3G mobile hotspot.
You can download games from android market or just google them.My first choice is Google Play. There are tons of free games, such as:https://play.google.com/store/apps/details?id=jh.duckkiller2
Android.... And HTC