Is Gmail's capacity unrestricted plan true?

There is a rumor that the capacity of Gmail will be unlimited. Even at this point the capacity is over 2.8 GB and it is enough capacity to use in mail exchanges, but is unrestricted true?

Details are as follows.
When Gmail celebrated its first anniversary in 2005, Google has released the following releases.

A Google approach to math.

"Infinite + 1" is the word used in this release, the capacity part is actually steadily increasing every day, and it is over 2.83 GB at 12 o'clock on April 3, 2007. However, before Gmail achieves capacity unlimited, Yahoo! Announced that it plans to make e - mail capacity unlimited from May. Regrettably Japan and China are out of scope.

ITmedia News: Yahoo! America, Unlimited E-mail Capacity

This Yahoo! There is an announcement that Gmail will announce the capacity to be unlimited following the unlimited capacity of the following article.

BBspot - Google Responds to Yahoo by Increasing Gmail Storage to Infinity Plus One

With the new RAID technology, even if the server crashes by placing back up in parallel space, it is also written quite absurd things such as being able to recover data from another universe, but Yahoo! Considering that the announcement is true, Gmail's unlimited capacity will not be so far.