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Terrible picture of Samsung Galaxy S3 shows 4.7in screen

Another pic of the Samsung Galaxy S3 has leaked -- this one apparently showing a 4.7-inch screen. Or is it 4.8-inches?

This blurry pic was sent to Know Your Mobile, and the tipster claims it's the Samsung Galaxy S3.

They also claim the phone will feature a 4.8-inch screen. It's pretty hard to tell, with a picture of this quality, but let's look at the evidence.

The source says there are no hardware buttons on the device, though the same source previously sent the site a pic showing buttons apparently Photoshopped in. The screen size claims are also dubious.

Apparently it measures up at 4.8 inches, but over at Pocketnow they've gone all mathematical on us: busting out Pythagoras' theorem, they calculate the screen measures 4.74 inches. Previous claims peg the screen at anywhere between 4.65 and 4.8 inches, so while this could be the genuine article, it's far from conclusive.

We don't have long to wait now until we'll know for sure. Samsung is set to unveil the Galaxy S3 on Thursday evening at an event in London. Recently the manual leaked, and if that was genuine, we're looking at a 4.8-inch screen and 8-megapixel camera. Yesterday though, a version of the same handset but running Windows Phone 8 was touted, and the source there claimed the S3 will have a 4.7-inch screen and 12-megapixel snapper -- so it's anyone's guess really.

It also might not even be called the Galaxy S3. Samsung's invite asks us to come and meet "the next Galaxy", prompting speculation it could go all Apple on us and name it the next Galaxy, or new Galaxy, or something similar. A source that we've spoken with personally verifies that this is indeed the case.

As the follow-up to the S2, one of the best phones of last year, all bets are on it being a truly exciting phone. My bet? A 4.7-inch screen and 8-megapixel camera.

What do you think the phone will be called? Let me know what you reckon in the comments or on our Facebook page.