[lmv7777]

it should be default, if it isn't i dont know i never could get HHC to work on mine i believe there is a registry setting you have to change, you could look it up or use a registry editor to try and find the string

as far as maps, i would recommend sprint navigation. for a "free'er" (i know its not a word lol) you can use live search however sometimes the GPS is inaccurate and it doens't sort by distance. i haven't tried google maps but i assume it works just like it does on other phones and it kicks butt

depends on how you like it i guess. but those are 3 i recommend