Mobile phones can now kill aliens.
They face a new future as a handheld entertainment device, offering a raft of computer games.
A new intergalactic warfare game using a mobile phone has just been launched in Hong Kong, just prior to its worldwide release.
Finland-based Riot-E has developed an interactive game as a tie-in for the new sci-fi cartoon movie Titan AE.
Riot-E is part funded by Nokia, Software UK Ventures and the News Corporation. Its games use the Short Message Service or WAP functions on a mobile.
"For us the mobile is a lifestyle not a gadget," says Riot.
"Wireless games created by Riot are promoted and co-branded in parallel with highly visible international media releases such as movies, TV shows, sports events and other media events with worldwide coverage."
The company plans to be a leading worldwide supplier of computer games for mobile phones by 2002.
By then, they say 40% of the billion mobile phone users will also want to use their mobiles for entertainment.
Riot-E is also developing a mobile phone dating service that uses psychological profiling to help people find a partner.
However, Titan AE is not the first mobile phone game.
Digital Bridges of Scotland has already developed 18 simple games like card games, hang man and reversi for mobile phones.
And Sega is reportedly working with Motorola to bring Sonic the Hedgehog to phones and handhelds.