One reason i guess was that the ratio of usefulness to complexity of an MSS app was far worse than many other things that deserved improvement/implementation. Plus i think there aren't that many users who want MMS.

And because of limited resources they had to leave something out.

So the question would be why did they have or still have limited resources.

Well, time is limited and as a software developer myself i know that it doesn't always help to throw more money on the issue. Too many cooks spoil the broth, you know.

IMHO it was a very good decision. I don't use MMS for the high costs. I would feel betrayed. And you should too. Let me give you an example (based on SMS, but MMS is comarable in that matter).

Lets assume a price per SMS of 9ct (Euro).
And lets further assume a price of 25ct for 1Mb internet traffic.

Now an SMS contains 140bytes (160 7bit characters). One megabyte is
1024 * 1024 bytes = 1048510 bytes. That means you would have to send 7490 SMS to transfer 1Mb, which would cost you a whopping 674,10 Euros. Compared to 25ct on the internet. So SMS traffic is roughly 2.600 times more pricey than internet traffic.
Now how do you feel about that? Is it fair? Or are you pissed off?


Edit: The prices i took are the lowest i found in germany.