The low-end LG Optimus S that wowed us earlier the other day has a magenta twin -- the LG Optimus T, headed to T-Mobile with very similar hardware. Considering that both carriers' phones will come in purple and black, you could easily be excused for confusing the two -- aside from a prominent logo and the physical button arrangement, they've got the exact same build. That's not a bad thing, mind you, as it means the Optimus T is similarly solid as a rock, but there are a few differences here and there, like the lack of dedicated camera and voice buttons this time