From what I have read about upgrading memory, it would be so big change that its not going to be made atleast for all users. Ive read about user whos trying change the sdram module in phone, if I remember right there was a flash module about 20 Megs and sdram of 8 Megs, and he is trying to change the sdram module to 32 Meg. Little hope of success, and major risks of destroying the whole phone.