BT Openzone is building 607 new Wi-Fi access points in games retailers across the UK to allow players to download content including free trials, new game levels and promotional broadcasts.

The hotspots will be installed at GAME, Gamestation, HMV, Toys R US, Smyths Toys and other selected independent retailers across the UK and Ireland.

BT has initially partnered with Nintendo to offer the service to users of the console maker's DS portable gaming unit.

"The Nintendo Wi-Fi Connection service is already proving extremely popular with users across the world, and it's a strong proof-point that Wi-Fi is becoming mainstream," said Chris Bruce, general manager of BT Wireless Broadband.

"We will really see Wi-Fi coming of age this year and this agreement is taking BT Openzone even further into the high street and retail parks by giving gamers access to Wi-Fi in an easy and accessible format at the point of purchase."

Games initially available to download include one-level demos of Polarium, Meteos and Shigeru Miyamoto's Nintendog 'Pic'.

Forthcoming downloads in April and May will include playable demos of Pokémon Link, Trauma Centre: Under the Knife, and Dr Kawashima's Brain Training: How Old Is Your Brain?.

Nintendo recently reported signing up a million wireless users in the four months since the launch of the DS console.