[cromka]

I am guessing they already knew GPRS/UMTS and data plans were the future, hence they invested in iMessage. MMS already had an expiration date. Quite sure they only added it because of the PR disaster it had become.

[cozzyd]

and MMS is still the only thing that works on every phone out of the box...

[tuwtuwtuwtuw]

I often use MMS. Whats the expiration date?