I'm hoping the updated white Macbook gets DDR3, led backlit screen and lighter enclosure. That's it. I love the white Macbook, the style has worked since the iBooks. It's a great, simple design. I hope they'll address the cracking top case issue. Keep it at $999, and if they build cheaper ones with DDR2 RAM, an Intel Atom processor and Intel GMA chip to bring it down to $600-$700, I wouldn't buy it... but I know hundreds of thousands of people will.
I had an Aluminum Macbook, I sold it because I lost my job and needed to pay the rent. Now I have a 1st gen Macbook that I repaired. I actually prefer this to the Aluminum... I just wish it was faster and had better graphics.