Rediffmail launches unlimited email storage - But Why?

Would it be of any use really?
No, I would say.
Why?
Because :
1. The maximum attachment size is still 10MB, so hard
luck for those who would like to store their multimedia
or other huge files in rediffmail in a simple hasslefree
manner.

2. It doesn't have any feature which can force gmail
to even blink an eye-lid, let alone the other bunch
of integrated services that come with a google account.

3. Its spam filter is almost non-existent and add to
it the amount of promotional mail that rediff itself
sends to its users and you know how would the unlimited
space be utilized.