I just bought it, and I can't seem to find where to change the "Hot Keys", or, the applications preset to each of the directional keys from the home screen. Is there a way to change those?
I don't think so. I'm not sure which keys you mean by "Hot Keys", but if you're referring to the two buttons with a line across them to either side of the navigation keys, mine are set to "Menu" and "Browser". The navigational or direction keys on the LG 290C are also similarly hardwired, as are the keys with the icons on them at the top of the slide-out keypad.
I also had the Samsung R355C handy, so I checked that phone and found that you couldn't do it on that either.
The Net10 version of the LG 900g does have a "Quick Menu" that you access from the top nav key, and you can choose what functions to put on that quick menu. This phone is also available through Straight Talk. I assume, but I can't be positive, that that feature is in the Straight Talk version as well.
Sorry I can't be of more help.