İ just updated my Omnia w, version is 8862.144. Microsoft said this update will fix tile issue but now tiles are late to openg. Do you have the same problem with 7.8?
I forced updated my Focus Flash using the Seven Eighter tool but that specific problem persists. However I don't recall them mentioning that it fixes the delayed app Tile response.
They did state that it fixes some issues with the Live Tiles not updating their information though.