No, because it has to go out and get the data, at least the one on my phone. Then, it cannot just show me the data, it has to dress it up in some animation building up to the info that I want, like I need a story to keep me interested. It doesn't update in the background so the data is always fresh. It also has a different screen for tomorrow's forecast.
The SMS from Windows Live had all of that and it is in my inbox when I wake up.
It is the difference between 15-20 seconds and about 2 seconds, or less.