I found some more good travel apps to share plus you get 4% cash back now with apple through the deal I posted.
1,000 Ultimate Experiences
Browse Lonely Planet's 1,000 top destinations and experiences, with lots of photos. Topics include "Top travel boasts, myths, and legends," and "top tourist traps worth the crowds." $19.99
Loopt Pulse
In a strange place and don't know what to do? Want to find something interesting to eat, drink, or do nearby? Loopt brings up real-time activity in Map or Photo view. Free
Paris Street Map
The iPad's built-in maps app is nice, but it doesn't work if you don't have a network signal. These offline street maps work anywhere, and are available for several cities, including Paris, New York, Buenos Aires, etc. $2.99
Just some I've recently found. I'm still interested to see if anyone has found a travel app that is a must have. Let me know.