The Gmail effect seems to be positive for all users... after the Yahoo mailbox increase in space, also Hotmail will take the same action: the free space will be 250Mb (+ 10Mb attach limit) and with an annual fee around $19.95 you can have 2Gb of storage + 20Mb attach limit, no expiration date and (important) POP3 access.
Seems also that MSN Premium subscribers will automatically switched to the new 2Gb service.
A great improvement thanks to Gmail... 