Hi all, I'm new here and decided to create an account as I wanted to pitch an idea of why Apple decided to ship 2GB as the standard amount of RAM in the MacBook Airs. If I understand correctly, after an hour of closing the lid, the MacBook Air's will enter a "deep sleep", in which it basically writes it's RAM to the SSD, and powers down to conserve as much battery as possible. When you open the lid, for the Air to power back on, it has to write the RAM dump from the SSD back to the RAM. Now, if the Air has 4GB, it seems the RAM dump would be up to twice as big as the 2GB, and would take even longer to write back to RAM after the deep sleep, thus making the "instant on", even less instant, compared to 2GB. I know SSDs are fast, but when you're talking about a RAM dump that is potentially twice as big (2GB bigger), it seems this performance hit could be significant in getting this information back into the RAM. Since 2GB of RAM works for most people, it seems Apple figured this would provide the best blend of instant on performance for the user. This also makes me wonder if this is why iPads are able to turn back on so quickly as they only have 256MB of RAM -- I'm unsure if they utilize the same kind of technology to write their RAM to the HD or not, but if they do, it makes a lot of sense why the iPads come out of standby so quickly. I've searched high and low on the internet to try and find if 4GB MacBook Airs take longer to turn back on from "deep sleep" and actually be responsive than their 2GB counterparts, but have been unable to find any solid information or benchmarks to support this. Also, if anyone who is technically inclined with a 4GB Air, can max out the RAM usage, and see what kind of performance time-wise you see coming out of deep sleep, I'd really appreciate it!