If you actually read the dissambly guides you would know it's necessary due to the thinness of the edges.
Before the misconceptions get out of hand:
LED screen = no inverter board = less electronics
MacBook Air is benchmarked faster than PowerMac G5 Dual Core 2.5ghz (geekbench).
Before the misconceptions get out of hand:
LED screen = no inverter board = less electronics
maybe to differentiate between lower and higher end models. Even though the Air isn't that cheap, it still isnt 'pro' performance wise
MacBook Air is benchmarked faster than PowerMac G5 Dual Core 2.5ghz (geekbench).