FCC E-filing yielded up some new information and photos on what appears to be a new Shield handheld. In the letter to the FCC from NVIDIA they designate it a Portable Gaming Device, with the type designation P2523. It will feature micro SD card expansion, a 3.5mm headphone jack, and charge via mini-USB.
Taken from the letter to the FCC:
Click here for the original submission to the FCC. Like everything, take this with a grain of salt as the last time anything hit the FCC, it didn’t make it to production. You can check out more images of this possible new Shield Portable below. We have contacted Nvidia and when we hear back from them, we will post an update.