iPod

I got a new iPod from my boyfriend as my birthday present. New iPod is thin and light. I have wanted to get iPod since it went on sale. But there is not a chance to get it. When I would buy the first iPod, iPod mini came to market. Then iPod shuffle and iPod nano continued to come to market. Now I think it is good for me to wait to get it. In next iPod, what new function or size or price come true?