You can access the 3DS store from the 3DS menu bar. Once you do that, you can purchase and download games from there.
Yes
You can't get free games on Nintendo 3DS eshop you need funds for games.
On the 3ds shop, you are able to buy and download older games. That work for the buttons on the 3ds of course.
Access the 3DS eStore through the icon on the main menu. From here you can add funds to your wallet, purchase games, and download them. You can also redownload games you own but have deleted.
No, that'd mean the 3DS would be open to all manner of software piracy. The way to download games using it is over wi-fi, using the 3DS Store.
When you download a game from the estore, it should appear on the main menu, just touch it with the stylus to play.
You cannot download adobe on to a 3DS
No, as that would kill the point of the games being ambasssador only.
You can download netflix in ANY 3DS.
You cant, its doesnt have apps like that on it yet. It only has games exclusivle for the 3DS andgames that you can download, but Nintendo doesnt have a contract with the creators of Temple Run so yourcant download it.
The 3DS can play DS and DSi games, and most DSiWare games will be available for download/transfer from an existing DSi when the eShop launches in June.