Your GPS is a really cool toy, but what if you could make it even cooler? What if you could build and hook up data cables, modify your iPAQ cradle to take a GPS connection, tweak the firmware, hook up to your PC without expensive software, use GPS data in a hundred creative ways, even solar-power your GPS? Suppose you could beef up your "first to find" quotient when geocaching, or use your GPS as a super-accurate clock. Well, you can. Read on - your adventure is just beginning!

Part I Hardware hacks
Chapter 1 GPS secrets
Chapter 2 Building GPS data cables and power cords
Chapter 3 Power hacks
Chapter 4 Antenna hacks
Chapter 5 Protecting your GPS
Part II Software hacks
Chapter 6 Hacking the firmware
Chapter 7 Making connections
Part III Data hacking
Chapter 8 GPS data
Chapter 9 Examining the data
Chapter 10 More data tricks
Part IV Playtime
Chapter 11 Hacking geocaching
Chapter 12 GPS games
Appendix A GPS primer