Remember that recently leaked T-Mobile device road map? The on that mentions a certain HTC Vanguard getting a release this September? That phone very well could be the recently-imaged HTC Vision with its slide-out QWERTY keyboard, but the juicier information is that this handset might just be T-Mobile’s first fully-functional HSPA+ device. And if that’s that case and T-Mobile’s HSPA+ network lives up to its promises the Vanguard/Vision could be seeing speeds in the 21Mbps area. The September-bound device will be followed in the fourth quarter with a second HSPA+ handset. It’s not quite 4G, but its a step closer than Verizon and AT&T have taken towards getting their next-generation networks and devices up and running.