Water (Beer) damaged iPhone (desperate for photos)

I had a very small amount of beer spilled on a glass table and my phone which was resting on the table unfortunately got wet on the back face. I dried out the phone all day on sunday and turned it on monday evening and it powered up ! Thinking it was working as normal - I powered it off (sometimes when the 3g doesnt work it helps to turn it off and on again) - Needless to say - it didnt come on again !!

I have taken it today (thursday) to a tech repair specialist at 9 am - just been off the phone to them at 12 noon and they told me they soaked the parts in alcohol and reassembled.

No good !!

I am hoping against probable reality that they just didnt give it enough time to dry out and that it will power up for me when i plug it in when i collect it on my way home.

This is unlikely - so my question is - because all I want off it is my photos ! , i cant believe that the memory on the phone is destroyed when it worked perfectly for me on monday evening until i powered it off (cringe)....... Is there ANY way that I can switch the storage with another iphone 4 - or basically is there anything that I can do. Im pretty desperate.