Practicality of Location-Based Apps

I spent the going undercover as a tourist.  I didn't know where my destination was going to be until I to go to the LA Union Station.  Little Tokyo, Universal Studio City Walk, or Long Beach.

I used my iPhone armed with Twinkle, Loopt, and Facebook.  I took pictures, chatted with folks in Twinkle.  Worked out kinks along the way.

Here are the results:

• paul_onxo (twitter)
  
• Facebook Update

During my trip, I was made aware of other social apps that have helped on the trip.  

I'll post a detailed review of the the process and how applicable/feasible using social apps to document a short trip like mine or a multi-day vacation.