This is a very important feature since this is basically the sole feasible source of income for the system and it opens up the world of audio-visual advertisement to companies that are so small that they cannot afford Broadcast media campaigns or that are so specialised that Broadcast media is not useful. eg. Organic Farms.
This feature requires the consumers terminal to have a colour display and video decoding facility. At least Nokia has one model out already that supports almost all of the Hardware Requirements for a consumer terminal. It's 3650, tri-band (works in US and GSM countries), 3GPP real video decoding, Bluetooth. The 3650 unfortunatelly doesn't support XHTML browsing over Bluetooth for some curious reason.