I want to buy NEXUS S or NEXUS S 4G, which one do you suggest me to buy? Can you tell me the prices for both of them? And I don't live in USA, I live in Albania, Europe and I just read that it doesn't have a SIM card slot, is that true? :O I want to buy it without a contract, so I just insert my sim card and enjoy my phone. If you don't prefer this two, can you suggest me other android phones from $100 to $350 ? Thanks.