Some of these limitations can be undone by opt-in advertising. Where the users can decide to accept them. Recent surveys show that about %20 of the cell phone users will accept this.

Even more users did not use premium services due to the cost involved. This opens up cell phone ads to acceptance.
High priced services like MMS and always on internet are clearly ripe for advertising. For example, at the bottom of an MMS would be a smaller picture of a brand and where to buy them. Sale of the week!

Perhaps double your online time if you click my link.

4 years ago a survey stated that %40 of users use non voice related items, such as MMS, email via their phone and text messaging.

And remember, you won’t get these phone numbers from your local friendly phone company!

The opportunities are endless. But to get the users to opt-in, you need a decent website that will drive the users to input their number.