Huh, interesting. My Asus EeePC 1000 has the slowest network sign-on of any of my devices, but I'm running Ubuntu 10.04 on it. I wonder of Arch Linux has better Wi-Fi drivers or something. I the author of the original blog post, and I performed a similar protocol analysis on my EeePC. Surprisingly, the DHCP handshaking was actually pretty fast, it just seems to take a long time to establish the link. I should really upgrade the OS one of these days.