When it does become available, your phone will show a notification and you can then proceed to update the phone through the
Zune software. Currently the Windows Phone 7.8 update supports Lumia 900, 800, 710, 610 and 510.
Microsoft will concentrate on putting
Zune software onto mobile phones, such as those running its Windows operating system, said the person, who declined to be identified because the decision hasn't been announced.
TELECOMWORLDWIRE-6 May 2008-Microsoft adds new
Zune software features and content(C)1994-2008 M2 COMMUNICATIONS LTD http://www.m2.com
Windows Phone 7 did it in conjunction with the
Zune software and the iPhone does it when coupled together with iTunes, but for some reason Windows Phone 8 is missing this feature?
The update will be delivered using the Microsoft
Zune software (or Windows Phone 7 Connector if you have a Mac).