Sony has upgraded six Vaio notebooks to include High Speed Downlink Packet Access (HSDPA) connectivity. It claims the SZ6 and TZ20 series, which consist of six notebooks in all, will eventually provide users with download speeds of up to 7.2Mbps while on the move.

Sony's Vaio: 3.6Mbps HSDPA downloads next month

Released under Sony's new Everywair brand, the technology will initially provide internet connections of up to 3.6Mbps, however a firmware upgrade to be released at some unknown point in the future will then enable users to gain connection speeds of up to 7.2Mbps.

Sony also told Register Hardware T-Mobile will be its preferred network partner. It also said the technology means users won't have to be within range of a Wi-Fi hotspot or fixed connection to enjoy broadband internet speeds. Unless, they're out of range of the 3G network, of course...

Everywair requires a network SIM card to be slotted into a bay on the laptop's side to gain network access. All six laptops each have two 3G antennae in their lids, which Sony claimed provides better connection quality in areas of marginal coverage.

The three SZ6 models range from £1300 (€1650/$2600) to £1900 (€2250/$3800). The three TZ20 models range between £1500 (€1850/$3000) and £1900. Everywair will be included as standard across all six models from 21 September, with connection prices varying according to the network provider.