Huawei has been making waves with its super high-end phones from Mobile World Congress, the Ascend D Quad and Ascend D Quad XL. But the company has tears of experience serving the low end of the market as well, and it looks like they have no intention of letting it go to waste. The Prism just passed through the hallowed and extremely gray halls of the FCC, spotted by Blog of Mobile on its way to parts and carriers unknown - though its wireless bands indicate that it's headed for T-Mobile at some point.
Not much can be deduced from the listing itself, save the radio frequencies and a 1400mAh battery. But based on the "U8651T" model number, it's probably either a small upgrade or a complete replacement for an older low-end model with a 3.5-inch screen. T-Mobile has relied on Huawei for rebranded hardware before, so it's likely that they're looking fora new bottom end of their Android line - probably without Huawei's name on the branding or marketing.
An FCC filing doesn't guarantee a release, and even if this is a definite device it'll probably be a couple of months at least before it see the light of retail. With its reputation as a budget national carrier, T-Mobile does well to offer lots of options for the low and mid range, even if its more high-end offerings aren't as expansive as Verizon or AT&T. We'll be keeping an eye out for the Prism over the next few weeks.