After making recent buzz regarding Surface, Microsoft rolls out a preview of its plans for the mobile future. Windows Phone 8 presents the most advanced mobile operating system to date. The architecture will obviously support the current crop of dual-core processors but will also make way for quad-core and up to 64-core processors. In essence, it uses the same kernel, file system, media foundation, device drivers, and a similar security model as its bigger brother Windows 8 to allow device encryption, removable storage with microSD cards, and other improvements that IT pros and businesses will appreciate. Apart from the performance boost, advanced integration means that developers will be able to leverage desktop and phone apps. Windows Phone 8 promises in a nutshell the foundation for bigger, sharper screens, more flexible storage, wireless sharing, a new Internet Explorer 10, better online security features, improved Nokia maps and directions, and a new digital “Wallet” that when paired with a secure SIM can pay for things with a tap of the phone. It will also enable video calling and anchor social networks like Facebook, Flickr and LinkedIn to your personalized Start screen so that you can see our friends’ instant status updates, easily stream images and share across multiple social networks. It all sounds very promising, except that anyone who actually cared enough to buy a Windows Phone in the last two years won’t be able to upgrade their phones to the new version.