I actually use MMS quite a lot. Even though I'd be fine sending emails instead, I've got a few close friends who either don't have data plans on their phones or rarely have signals adequate to use a data plan (one in particular lives out on a canal boat - so an mms can appear after a few moments of being in a small signal area without having to consciously monitor the phone - whereas trying to use a data connection on a very rubbish signal can be infuriating - especially on old phones that don't actively support email).

I also find that most data plans include MMS or if they don't, they can be taken out of the numbers of SMS in the plan (here in the UK anyway), so mms is easily accessible, whereas a data plan would be added cost for very little benefit (to these people with bad signals or old phones etc). Therefore I find them very very useful to communicate with these people - and it's not always for pictures - sometimes its useful to use an mms like an awfully big sms message (or email - but receivable by those people that you'd rather not have to teach how to configure emails on a phone etc).

I'm sure there are other reasons I use it too - but I'm falling to sleep now, so hopefully you get the picture! Or not if you can't get mms ... get it? ) - oh dear, it's been a long day.

I'm not sure if that helps put its use into a more understandable scope or not, but I definitely do find it very useful - but I would also love to not find it useful. Emails would be great and I'm all set for receiving them - I just seem to know so many people that don't send them - not from mobile phones anyway! For these reasons alone, I would love to have MMS capabilities on the likes of the N900.

Sorry to go on a bit there!