Nokia N95

Now that the N95 8Gb will soon be available in the US, I am considering buying it or the N95-3. Other than screen size, exterior color, and memory slot vs. internal memory, what are the other differences? I hear that the N95-3 will get a price reduction down to $599, so I'm having a hard time justifying paying the extra $150 for the N95 8Gb, especially when 6 and 8Gb memory cards are available.