CBS interactive has launched an official Star Trek iPad app. (it seems to be iPad-exclusive due to screen size constraints)
The information isn't as detailed as Memory Alpha or probably even... DITL...(basically copied from StarTrek.com according to the reviewer) but the kicker is that it's all presented in an LCARS interface - complete with Majel Barrett voiceovers.
Since it's priced at $4.99 for a rather gimmicky app, it won't be worth the cost to most though.
"If you can't take a little bloody nose, maybe you ought to go back home and crawl under your bed. It's not safe out here. It's wonderous, with treasures to satiate desires both subtle and gross... but it's not for the timid." Q, Q Who
I got a Tricorder App for my Android. And a widget that says "Khaaaaaaaaan!" when I press it.
"You ain't gonna get off down the trail a mile or two, and go missing your wife or something, like our last cook done, are you?"
"My wife is in hell, where I sent her. She could make good biscuits, but her behavior was terrible."
Seems cool, but ultimately a little thin, compared to DITL or MA.
There is only one way of avoiding the war – that is the overthrow of this society. However, as we are too weak for this task, the war is inevitable. -L. Trotsky, 1939