I'm trying to connect to Gmail and the market, but not having any success. I, too, only want to use WiFi as I'm using prepaid phone cards and don't want a data plan. I've got my Samsung Galaxy S GT-I9000 working on my home WiFi and the SIM card has been installed into the phone, but I get this message when I try to connect to Gmail or the market:
Can't establish a reliable data connection to the server.
This could be a temporary problem or your phone may not be provisioned for data services. If it continues, call Customer Care.
What do you suggest?