$650-$700 for a netbook?! Wow.
What are you going to do with this machine? You might as well look at some inexpensive notebooks...I was looking at some Dells the other day for a friend and found some nice ones for $699-$799...much larger screen (15.6), better CPU, larger hard drive, cd/dvd drive (if you need it). Of course it weighs more...but you'll need to give us a list of daily use cases in order for us to give you a better recommendation.
Although Acer has some nice netbooks, the namebrand Acer is not as worthy as ones like HP, Dell, Lenovo...so I am not thrilled as a consumer that Acer tries to price a netbook this high.
-Eric