Taken from one of the other threads here,this video shows it in some sunlight:

YouTube - Samsung I9000 Galaxy S and TouchWiz 3.0 for Android preview

 

Thats outdoors in the shade. We want to see sunlight!

 

YouTube - Samsung Galaxy S i9000 - Hands On ??????? - ePrice.MTS

http://www.youtube.com/watch?v=9_k_2KGDLA4

 

Take a look at the last video in this article:

Samsung Galaxy S preview -- Engadget

 

You'll probably get a lot more answers once it's released in the US.

 

I can see the screen in the sun with the brightness at only 50%

 

Nice!

 

Here also no problem in direct sun at 50%....if you can call it sun in UK

 

Super AMOLED vs AMOLED vs LCD in direct sunlight... fight! (video) -- Engadget

Herea a comparison od Galaxy S, X10 & Desire in direct sunlight.
Galaxy S looks to be better than X10. In any case, it will be more than usable for reading on the beach.

 

Yeah the X10 seems to show significantly better results compared to the Galaxy S, the desire was the worse performer though but not far from samsung.

 

Are you serious? Or am i blind?

 

Yes I am, just look at the video.

 

No youre not.. galaxy seems to be almost on par with the x10. maybe your just pesimistic?

 

Pessimistic on the phone that im about to purchase very soon, I dont think so.. I even hate Sony mobile phones but the video clearly shows the X10 doing better than the Galaxy S. You should take a look at the video a couple of more times from start to end.

 

well, when you are facing fone straight (which you will be doing most of the time) they are almost equal. The author seems to agree, and he had them compared in forst hand.

 

Then that makes me and zafonic legally blind.

 

The X10 looked slightly better than the Galaxy S to me too. But all phones, including the Desire, seem usable.

 

Welcome to the blind club!

 

Well i had the X10 before the Galaxy S and yes i would say it was slightly better in the sun.