If they had patented the original idea of a "gift card" that would let you buy vouchers with purchasing power... then I'd be a little more sympathetic.
Printed currency is a "voucher with purchasing power". Gift cards, whether for a specific item or for a certain value, are simply more specific forms of currency. There is nothing inventive about it.
Apparently it's real, as the Docs Help has very serious-natured help information related to Offline (no one calls it "unplugged" functionality: http://docs.google.com/support/bin/answer.py?answer=92323&ctx=sibling
Google announced offline access to their web-only productivity suite on April 1st. Isn't this a joke?
Same here: build 4506 of Opera 9.50 beta on OS X gets 60/100.
Acid3 does not mostly test CSS, but all kinds of things, with a particular interest in scripting and the DOM.