""How To Know When You’re Ready to Upgrade
Starting on July 29, we will start rolling out Windows 10 to our Windows Insiders. From there, we will start notifying reserved systems in waves, slowly scaling up after July 29th. Each day of the roll-out, we will listen, learn and update the experience for all Windows 10 users.""
I wonder if this means that come July 29th a lot of people who are expecting it will not be offered Windows 10 until later.