The majority of my friends are BlackBerry users so I'm not as clued up as I should be about iMessage yet. Let's say I've been SMS'ing an iPhone friend and then for whatever reason, it switches to iMessage. Should I then send a picture over iMessage, will that register as an MMS or will it send it like an attachment in an e-mail (no extra extortionate charges). If it is like an attachment, is there a way to absolutely TRIPLE check your buddy still has iMessage activated and it will be sent in the way intended? Should for whatever reason their connectivity drop and it's now SMS, will it abort the picture or at least prompt me saying 'are you sure? Vodafone are about to rip your eyes out with an extortionate some of money for a few measily kbs of data which should be included in your already extortionate price plan?'. Thanks.