From liewcf: After 3 years of launching, Gmail space is 3GB now.
Gmail started the “Infinity+1? storage plan at April 2005 to give growing email storage space to users. The counter had been slowed down after reaching 2GB.

Now, Gmail decided to speed up the counter to give out more free storage. The increasing rate is about 1.5KB per second, and Gmail space is over 3GB.

If you are storage hungry, you can purchase Google Storage. Google is now giving more space at the same price.

On the other hand, Google Apps users will get storage boost for their Gmail accounts too. Standard and Education Edition storage (now at 2GB) will begin matching Gmail’s counter, and Premier Edition users get 25GB (up from 10GB).