Better 3D city views and more detailed road warnings are just some of the things we can expect from the next crop of GPS systems. Tele Atlas is working on giving GPS units more info its users can use. Don't own a car? Pedestrians will also be able to take advantage of the new units, which will reveal bus/subway info in addition to highlighting pedestrian shortcuts. No word on how soon we'll see these new features, but personally they increase my temptation to buy a unit (even if I don't drive that often).
I love the concept of the GPS, but for all that i've seen (albeit rather limited), i've not been swayed into purchasing one yet. With horrible route calculating and meh display features, I'm just waiting for Google to release a stand-alone GPS.