If you're desperate for driving directions to plan a trip, there's no substitute for Google Maps. If you're desperate for driving directions because you're lost, Google Maps has you covered there too. With precise driving directions and up-to-date terrain and road maps, you can travel safe in the knowledge that as long as you have Web access from your mobile device, you can use Google Maps to make sure you know where you're going.

If you'd have a Nokia or other device that supports Symbian or a Java J2ME-based OS, you can try Mobile GMaps. (MG Maps) Sadly, MG Maps doesn't support Google Maps anymore, but it does bring Windows Live Maps, Yahoo! Maps, and more to your mobile device. MG Maps can even download maps for offline viewing, perfect for finding your way when you have no signal. MG Maps also supports built-in GPS on Nokia and Blackberry devices.

Planning a trip, or just want to know when your friend's flight arrives without bothering an already-annoyed airline rep? FlightStats can help you make travel plans and make sure you're in time for your connecting flight from your mobile device. You can track flight status, look up delays, or track flights in real time all from your phone. If you have a supported phone, you can download the WorldMate mobile app and book your hotel room from the runway.

TripIt is a frequent flyer's dream. Simply forward all of your travel confirmation e-mails to the service; from your hotel booking to your airline flight confirmation, and TripIt mashes them all together into a consolidated itinerary that you can follow from top to bottom. Best of all, you can get that itinerary sent to your mobile device so you don't have to carry a folder full of printouts when you get to the ticket counter. If you have an iPhone, make sure to grab the TripIt app. The rest of us can access all of the features through our mobile Web browser.