Well, I bought the iphone from a friend, not yet paid, http://www.everbuying.com/iPhone-p-30663.html?SSAID=314743 he owns a computer store and made a good price to me just do not know if it is original or not, can someone help me?

There is an old saying that goes, "If it sounds too good to be true, it probably is!"

A friend of mine recently bought what he thought was a Nokia N97 - the advertisement, similar to the one that you show, seemed to indicate that it was the genuine article. He paid $99 for it. When it arrived, the front of the box said Nckia N97 and not Nokia N97. It turned out too that, despite the advertisement, the 'phone did not support 3G services. So, yes, I concur with the previous poster's view 'If it seems too good to be true, then it probably is'.

Tim
Scotland

By studying the icons and screen I can tell you that it is clearly a fake, sorry.

It's probably a fake since the back says "Phone" rather than iPhone and the back doesn't look like it's glass.

Well, I wouldn't call it a fake... it's just not an iPhone.
And they don't say it is. Actually, the explicitly say that it isn't.

Dual SIM? iPhone doesn't have that
Java? Not on an iPhone
Memory Card? The iPhone doesn't have that.

If you read the description, you'll find the following sentence: 'Note: This is not an Apple iPhone".
So, it's not a fake, but it's not the real thing either.

The design is very similar, so if you flash it around a bit, people might think it's an iPhone 4.
But as it runs under Java, you'll probably notice it to be very slow and unresponsive, the touchscreen will react badly, etc.
Also, these things tend to fall apart within weeks of buying.
Warranty? Forget it. The seller is in China.

That should answer it...