This isn't a Triumph problem, it's a smartphone problem. All high end smartphones have crappy battery life. You can tweakhere or there, but at the end of the day, the simple fact is smartphone technology is improving a lot faster than battery technology.
Evo, thunderbolt, Incredible 1 & 2, every 1ghz smartphone out there with a big screen will have crappy battery life. The Optimus is much older, weaker hardware, that's why it get better battery life. The battery life on the Intercept is awesome.
Also, when people first get a phone, they usually are spending a lot of tim setting it up and playing wih it, which is going to chew through the battery also.