I’ve received a couple of notes on this today. The first time a user does a search and selects one of the search results, the information never comes up (it stays highlighted and the progress wheel keeps spinning). This seems to only happen the first time you run the app. So if you’re having the problem, quit the app and start it again. Keep in mind that actually quitting an app in iOS4, depending on the device you have, is a little more than just pressing the home button (which just sends an app into the “background”). To quit in iOS4, you might have to press the “home” button twice, then in the dock that appears on the bottom, “delete” the app.
I apologize for the annoyance, but it should work fine after that (and will be fixed in 1.4).