The uneven light issue is there, but not a big deal as it serves it's purpose "to see the keys in low light situations."
Now if somebody knows how to keep it from turning off within 10 seconds that would be great. Oh and before you point out the qkeyledtimeout thing. Yeah, it dont work.
Also if HTC would have decided to add more leds to the keyboard area, power consumption would be minimal. Watch batteries can power larger leds for months.
Our TP's have a lot more power than watch batteries, well at least when we take it off the charger that is.
