No need to waste time while flying, it's actually possible to work right from your seat in economy class!
In-Seat Power Supply: Some flights have a power supply system built into every economy class seat, so you can charge up your laptop while working. (Check out Singapore Airlines and Emirates.) The in-seat power supply typically delivers 110 volts through the US-style 2-pin power socket, so remember to bring the right power socket adapter.
Email and SMS: Emirates lets you send and receive email and SMS via the touch-screen display panel in every seat. Each email/SMS message costs US$1 to send and receive. I'm happy to report that both email and SMS worked fine when I tested them; my outgoing and incoming emails were delivered instantly. Email messages are limited to 160 characters though. See this for details.
In-Flight Phone: If you prefer to talk, you can use the in-flight phone but be prepared to pay US$5 per minute of talk time.
WiFi Internet: Connexion by Boeing used to offer in-flight WiFi Internet services but they closed down at the end of 2006. Let's hope we'll have better, cheaper in-flight WiFi Internet someday.
The M Files has returned from Seattle to Singapore after a long tiring flight. It's great to be home again.