If you've seen the latest mobile broadband device from 3 - known as the MiFi, you'll be aware that the latest developments in technology allow multiple users to connect to the internet via one mobile broadband connection.

Previously something of a no-no with providers because they feared loss of revenue associated with allowing users to share a connection, now it seems that gadgets which allow all your friends to use your mobile broadband connection are seen by providers as a way to 'add value' and thereby attract and retain customers.

The MiFi is the UK's first such gadget, a wireless modem which enables up to five users to connect separate mobile devices via one mobile broadband connection. But the usefulness of such an item could soon be surpassed, as the technology is now being incorporated into laptops, in particular in the shape of Microsoft's new operating system, Windows 7.

While other computer manufacturers - notably Intel - have been working on integrating the sharing technology into their laptops and netbooks, it seems that Microsoft is first past the post with a software layer in the Windows 7 OS which enables 'virtual WiFi'. The new software, which is currently still in beta testing, will allow users to group WiFi connections together to increase coverage and speed.