Ceton Companion Services and apps are available today for download at the links below.

ENGADGET: Ceton Companion apps for iOS and Android are available, bring WMC mobile control for $5

Another option is to download a mobile security app to scan new software and links.

CNN: Seven tips for safer online shopping

Most of these require a person to download specialist software or buy a game and there are no links between the different universes.

BBC: Screen shot from Metaplace

Apple's stylish iPod is the most popular digital player, with more than 4.5m sold in the last quarter of 2004 alone, and it links seamlessly with Apple's music-download service, iTunes, which sells more than 1m songs every day.

ECONOMIST: Not a dog, but a mobile phone