For random reasons, I go back and forth between using my Pearl and my Motorola E398. It appears all my contacts are on the Pearl and so when I'm using my E398, I have no contacts. I would like to be able to pop out my Sim and switch phones and be cool like that

I have the contacts backed up on the desktop manager, so if I can swap Sims, can I downlaod those contacts to the Motorola phone???

You have to do it one by one. Also, you can only add one number per contact on the sim card.