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Adrian has written us about about his concept of what he wishes multi-tasking in the next major version of Windows Phone 7 will look like.
Inspired by Build 7753 with its search button, he added a taskbar button below the arrow. Pressing the button would drop down a list of apps, and pressing and holding would close them.
While he was at it, he also added a double-wide mail tile for previewing the latest emails, a dedicated music tile, semi-transparent tiles, backgrounds and a whole range of new accent colours and themes.
See more of his designs after the break.