Windows 8.1 which is expected to be officially unveiled during the developer conference,but an alleged image leaked which shows the entire window 8.1 map claims that During Developer conference it is showcased only in preview form,which is specially designed for testing purposes.
While Microsoft hasn't talk anything about Windows 8.1,but on many Social Networking websites users claims that August 1 as a launch date,While this particular image claims that in August there is Windows 8.1 RTM version,while in October there is general availability.
No official details has been provided,So we can't guarantee that this picture is real.
According to our sources,Windows 8.1 will comes this Holiday season,So october date seems to be right time
Thanks Sam for this Tip