My upgrade with Sprint is not until July 12 so I have a reason to not get to hyped up about being one of the first like I have we devices in the past. Its going to be a hard month of waiting though while everyone posts about their new device.
Maybe Sprint will let me jump a month early on top of the yearly upgrade i'm already offered because i'm such a long term customer.
The good news is you can upgrade on July 1. I have confirmed this with Sprint, as I bought my device on June 6 of last year and they said I could upgrade on the 1 of June. The bad news is you have to wait until July (which I believe will be a month after EVO is released).