Why 7.8?

[sdreamer]

Paul over at WinSuperSite kinda alluded it to be 7.8 = 7 dot 8 = 7 to 8; i.e. the bridge update for those on WP7 to get to WP8, i.e. this is what 8 will feel like if you actually buy a device with WP 8; something like that.