Nvidia's Shield console was due to hit retail tomorrow. However, a last-minute snafu with a "mechanical issue" has the portable gaming device delayed a month. According to Shield's official website, it will be out by "the end of July."

Speaking on its official blog, Nvidia's Jason Paul says that it won't release the device "until it's fully up to the exacting standards that NVIDIA's known for." According to Paul, "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."

For the uninitiated, Shield is a mini console that combines a Xbox 360-style controller with a 5-inch, 720p, multi-touch, flip-up screen. It's powered by Nvidia's Tegra 4 mobile CPU/GPU combo with 2GB of RAM and the Jelly Bean version of Google's Android OS. While significantly more powerful than Ouya, it also costs significantly more: $299.