Ben Rudolph has published a detailed article on the Windows Phone Developer blog covering tethering in Mango and the web Marketplace, which is currently being rolled out. Tethering, or Internet sharing, will be available to those who are on a plan that allows it by the carrier, if implemented by the manufacturer. It will enable Windows Phone users to connect to the Internet on a laptop or desktop via their handset, should no other access points be available.
Unfortunately, before you get your hopes up while installing the update, also written in the article:
"I should note that this feature will only be available on new Windows Phones that have radios capable of broadcasting a connection; if you update your existing phone to 7.5, it won’t give it the ability to use Internet Sharing."
Joe Belfiore also tweeted that newer handsets will be able to take advantage of the new feature, but no word on 1st generation devices. Hopefully we'll bring good news for us 'oldbies' as updating our handsets just for tethering seems baloney.
Moving onto the web Marketplace, which we recently covered the launch. The advantages noted in our coverage is the ability to try and buy apps and games on the web while your device secretly installs them in the background requiring no user input. In the video above, Ben walks us through the new Marketplace and what's so awesome about it. Let's not forget the new My Windows Phone section!
Source: Windows Phone Developer blog