Keep Google fonts updated on your desktop
googledevelopers.blogspot.co.uk
googledevelopers.blogspot.co.uk
"Would you like to install our font installer?"
No? You want to add a font to a collection to download it?
"How about installing our mac client to help with that???!!?"
....
do not want.
This is even more painful than downloading the fonts manually.
(edit: this is about 100000% more pleasant to use in every way: https://github.com/w0ng/googlefontdirectory, for anyone else looking for an easy way to get the fonts that does not involve convoluted websites)
Google Web Fonts have always been available offline; when you start browsing the web fonts and then add one to your "collection", you should be able to find a link that says "download your collection". That's one way to do it.
Another way to do it is by accessing the font repository on Google Code, which is not new and has always been around; the fonts are stored in a Mercurial repo. This is mentioned in a link near the end of the article.
The point of this article, and what isn't really emphasized even though it should be, is that (apparently, I haven't used it) this SkyFonts tool keeps the fonts updated on your local machine. This might seem like a silly feature, but I can tell you from experience that the Google Web Fonts do actually update pretty frequently; not just new fonts getting added, but existing fonts will also receive updates. Having to pull down the deltas on the hg repo and then reinstall all of the changed fonts manually when you're using a large subset of the library is not a trivial task.
Also the systray app does not respond correctly. And then the manual download of font? What gives... I'm totally missing what's this about (I'm not a designer, so I probably don't know much).
http://www.webupd8.org/2011/01/automatically-install-all-goo...
https://code.google.com/p/googlefontdirectory/#Download_Sour...
Google changed repository layout so there are a lot more subfolders to sort through but `hg clone https://code.google.com/p/googlefontdirectory/` still works fine.
(edit: just saw @shadowmint's update, agreed about https://github.com/w0ng/googlefontdirectory being better in every way.)
Edit: Hmm, re-reading your question that may not have been what you looking for. I would still say yes, it would serve pages faster, as it would serve pages faster due to the lack of https connection to fetch the font.
Oh dear, I hope I'm helping. :/
However, it's not worth it for that use, and it's especially not worth it playing Pokemon (gotta catch 'em all!) with all the web fonts you see around the internet.
It is useful if you work on more than one computer and want to keep them synchronized though.