Not sure where you got pricing but minimum for CPU + MB + IGP is going to be around 450 to 500 as the price for CPU is already around 250 to 300. Cost for chipsets usually run around 20 to 40. Then you have the cost of assembly + other bits and pieces (audio, wifi, bluetooth, efi).
An 80 GB would be considered too small by most and because Apple usually picks SSDs from Samsung or Toshiba which come in 128GB and 256GB sizes.
Also good luck finding a screen for less than 100 bucks for 2 reasons. On the 13" they are going with a 1440x900 screen which costs 250 bucks used. Also manufacturing of higher resolution screens are usually more expensive due to higher number of failed screens (too many dead pixels etc)
1. yeah, possible it could be $450 to $500.
2. recent rumor -> intel is going to come out with 80GB SSD similar to the price they sell for 40GB (Apple does not necessarily needs to keep at 128GB, at least at the base model let us say 11.6")
http://www.newegg.com/Product/Produ...08120 50001157 600038494&IsNodeId=1&name=40GB
also apple might get bigger discount from intel than from samsung/toshiba since they are getting the CPU and other parts as well.
3. Screen price i am not sure, is that that expensive? (let us not assume the resolution, let us say same resolution as now 1280x800) is that expensive?
when we consider specs for MBA, the main aspect the MBA will be road warrior (not going to have big storage space)