I've just been out to the car to check on all functions of the Connected App, plus checked the Remote.
No problems at all, so it's worth persevering with yours.
As I said, I'm pretty sure that one of the Apps (at least) was updated for iOS5 recently... The versions I'm using are...
Connected App: 1.6.1(7577)
Remote App: 1.0.3/1.9.1
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