Recently Microsoft company's officially announced its next generation mobile operating system "Windows Phone 8".
Windows Phone 8 comes with a newer Start Screen allowing users to re-size the tiles and customize their colors.
Microsoft revealed only the new core platform capabilities and no end-user features. To start the new mobile OS will feature support for multi-core processors having upto 64 cores, support for two new screen resolutions 1280x768 and 1280x720, support for removable MicroSD cards, NFC wireless sharing, Internet Explorer 10, Digital Wallet, Better maps and directions with integrated Nokia Maps and more.
It is sadly to say that existing users won't be able to upgrade to Windows Phone 8 citing the fact that the new core-features are not tailored to work with legacy device hardware. However, another update "Windows Phone 7.8" will allow existing users to upgrade and enjoy the new Start Screen with ability to re-size tiles and color customizations.