I have no idea Its confusng
In google play all apps are free
You must reset the game to change your name in any Google play apps
No but google play store does
Google play has included Nepal also in the country list where we can buy google play applications.
Android Market is now Google Play. If your phone didn't come with Google Apps, then you can flash GApps, you can find this on the xda developers website
Google play or android market
You can download your games and applications in the Google Play Store. It is an application market.
You should be able to download games or apps is with Google Play, or its previous version, Google Market.
Considering that you are talking about Google Play Store, it was launched in 6th March 2012.
It is quite easy to download the google play store on your nabi tablet. However most android tablet already has a pre-programmed google play store on it. Google owns the android market, hence if your nabi tablet is an android tablet then it will have play installed.
If you have an Android tablet, and have at least Android 2.3 OS (Gingerbread) or newer onboard, it should already have Google Play, or should be upgraded from Android Market, its former name.
Though Google Play (previously called Android Market) is generally available for Android OS 2.2 and above, it may be limited for use on devices with Android 2.1, and/or the device itself might not be compatible to use it.