Where is the memory card in a g1??

I know how you feel. I could not figured it out either. You need to open the keyboard and in the lower right corner of the keyboard is a little flap you open toward the lower edge of the phone.

I will post a picture

Resetting G1 Google Cell Phone

If you have problems with your g1 phone where is freezing or you want to reset it to factory settings the following are the procedures:

For hard reset - Where everything gets erased and it is back to factory settings.

turn off phone
hold down red button
last button to the right to turn off. Once off

hold home key (little house) and red key (phone icon) down at the same time
and the reset graphic screen comes up
you get a caution sign (triangle)
open key board and press down the following keys together alt key with the w key

For a soft reset -

turn off phone
hold down red button
last button to the right to turn off. Once off

hold home key (little house) and red key (phone icon) down at the same time
and the reset graphic screen comes up
you get a caution sign (triangle)

Press the following keys together and hold them for 1 second
home key and the back key