Android 4.3 update expected next month for "Google Edition" Samsung Galaxy S4
There is no word when the Google Edition of the HTC One, which is also available to be pre-ordered from the Google Play Store, will also receive the Android 4.3 update. This model is $599.00 and comes with connectivity to AT&T's network.
Meanwhile, a published report says that user agent strings are showing versions of Android 4.3 running on the Google Nexus 7 and the Google Nexus 10 tablets. The 7 inch slate was running JWR66D which is code showing a JellyBean build (J) for the second quarter of the year (D) on the 66th day of the quarter (66) and is the fourth build of the day (D). That means that the JWR53F running on the Google Nexus 10 and the build on the Google Nexus 7 are from the end of May, early June.
source: SamMobile (1), (2), MYCE via AndroidAuthority