Netbooks are much more powerful than the hardware used in the G1 Android phone, and Android gives a pretty good impression of running every possible app at once

Netbooks are much more powerful than the hardware used in the G1 Android phone, and Android gives a pretty good impression of running every possible app at once (if apps are written to save state) even though the constraints of the device and UI limit it to about 6 apps active at once. If an app is removed from memory because it hasn't been in the foreground in a while, they usually pick up right where they left off when they are restarted, and it doesn't even look like they had to be restarted. Microsoft won't do this with Windows though, because it would break backward compatibility and change the user experience consistency that is the bread and butter of their Windows sales.