The words from Gruber inject some mystery into tomorrow's WWDC keynote. Earlier on Sunday, the Wall Street Journal said that iOS 7 has "plain solid backgrounds and more white space," and will have a new way to share pictures and video.
Of course, this could be merely Apple trying to confuse everyone about what to expect tomorrow. Last week, we showed you an image of what was supposedly iOS 7. But unfortunately, the picture was not clear so no judgment could be made about any changes made by Apple.
source: MacRumors via RedmondPie