When will Gmail reach 3GB?

Weasel(via Digg) is a careful person. He has been watching Gmail's capacity growth for some time now and has come to some statistics and conclusions that at the current rate of Gmail capacity growth, Gmail will reach 3GB in April 2008. And before the second half of 2005, Gmail's capacity growth rate was relatively high, an average of 3.3MB per day, and then until now, Google has slowed down this growth rate, only 0.4MB/ day. So on Gmail's 4th birthday in 2008, Gmail will become a free 3GB email.