In the 11th hour, Nvidia decided to delay shipments of the Nvidia Shield to July, due to a mechanical issue that turned up.
The Nvidia Shield is a portable gaming device -- a really nice controller with a five-inch 720p display and Tegra 4 chip that not only utilizes Android games, but can also stream games from your PC to the Shield if you have a GTX 650 GPU or better in your PC. It's a really nice piece of tech.
It was supposed to go on sale this Thursday, but Nvidia is delaying shipping until sometime in July. In a statement on their Nvidia's Blog, Jason Paul wrote, "The issue relates to a third-party mechanical component, and we're working around the clock with the supplier to get it up to our expectations."