Remember those rumors earlier this week that T-Mobile was finally getting ready to launch a mobile hotspot or two? Seeing how Verizon, AT&T, and Sprint have all done it, it certainly makes sense -- especially with this newfangled 21Mbps HSPA+ network T-Mobile's got going on -- and sure enough, we've now got concrete evidence of a unit in the FCC's database. The MF61 from Chinese manufacturer ZTE is pretty clearly labeled "T-Mobile 4G Mobile Hotspot" inside so yeah, there's your smoking gun. Confidentiality prevents us from seeing the user's manual or a photo
