Hi, I am a developer of TweetTime which is iPhone Twitter Client. I have been through similar problem about a month ago. But one day it was fixed. And I got another huge JSON response error, again. It makes TweetTime app work weird.
http://twitpic.com/xt0vw/full - Check out this screenshot to see errors. From left to right, First is a tweet without Geotagging, Second one is with Geotagging, and third one is one it should be. It makes my app look like this. http://twitpic.com/xt208 http://twitpic.com/xt22f Also, searching Api for location no longer work. Not only my App, TweetTime, but also Tweetie, Twitbird... all the iPhone apps supporting near by tweets cannot search the results. All these are happened since........ I guess couple of hours ago. Hope it will be fixed quickly. Thanks.