how much memory??

16mb on the memory stick duo and 12mb internally

can this 16mb on memory card be used like internall memory
for apps. games pics...?

Yes! Anything you like.

I don't think this extrenal memory can be used for storing contancts... 😞 😞 😞

why do you wanna store your contacts on the MS?? you got your sim Card for that !!

the sim card in Saudi Arabia only stores 160 numbers 😞

The p800 stores contacs on the SIM? Not in internall memory?
I find that hard to believe.