of mobile Internet. Today's WAP services offer a host of entertainment features, including horoscopes, lottery results and sports scores. On a more interactive level there are games that can be played alone or in competition with other users. The development of new games and adaptation of existing games is a huge opportunity for content providers. In addition, elec- tronic music distribution (EMD) took off before digital rights management technologies were fully developed. 5.3.6 MESSAGING Messaging is a transfer technique rather than a content type The general simple procedure for the sender is to: 1. Write or fetch the desired phone number from the internal directory 2. Write the text message or fetch a ready-made message 3. Add sound and graphics (EMS) or music and a pointer to a photo or moving pictures in an MMS database 4. Send! Let us now have a look at the three types of messaging. Short Message Service (SMS) SMS has been on the market for several years but became a success, especially among young people just a few years ago. Text messages, a maximum of 160 characters long are sent between mobile phones. During the first half of 2000, 161 million messages were sent in Sweden. One year later, during the first half of 2001, this figure was almost three-fold, i.e. 463 million SMS were crossing the air. In Japan the major operator NTT experienced a great success with 'I-mode' that includes SMS as one of the services. So, what is the reason for the SMS success? One answer is that it is interactive and relationship oriented. In some sense it is also cheap, simple and direct. It could be regarded as cheap since the service is normally included in the mobile subscription and the user only pays when it is used. The user can also reduce the number of transmitted characters by replacing 'I am glad/happy!' with O, i.e. sentences are replaced by simple figures, so-called smileys. SMS is also quite fast. It is sent directly to the desired mobile phone, with minor delay and saves the user from calling any message databas