Palm 650 - Manual (Page 146)

134 Section 2D: Managing Applications
Inserting and Removing Expansion Cards
When you insert an expansion card, the card name appears as a category with a
card icon next to the name. To switch between the applications on the expansion
card and your device, select the category pick list at the top of the screen and
select another category.
1. Press down and release the dummy card.
2. After you feel the expansion slot eject the dummy card, remove the card
from the expansion slot.
3. Hold your Treo 650 with the screen facing you and the card with the label
facing you. (The notch on the card should be in the lower-left next to the
antenna.)