What is the next “feature craze” on mobile phones?

Look at the cellphone/smartphone/mobile device you are carrying around with you.  Take a second to think about every feature that it has and what it can do.  We take many mundane, simple features for granted every day such as MMS, Bluetooth, and now even WiFi and 3G.  Such features just a few short years ago were seen as “big ticket” items that many were willing to pay dearly for.  With each new revolution or advancement in mobile technology comes with it the attention of the devout few followers, those who love their gadgets so much they would tell little Jimmy that he will have to buy his own bike because papa is getting a new Blackberry.  Looking at your current phone, regardless of how new or old it is, as well as looking at what is in technology magazines and websites today as the up and coming mobile tech, what will be “the” next thing?

****This is by no means a scholarly level review of the history of the cellphone.  It is more of a trip down memory lane if you will…and maybe getting an answer as to what will be the next mobile craze****