A: 

To answer my own question:

I have two applications installed on my device with the same name resp. the same Bundle display name: Doublemill. Since they have different bundle identifiers, the debugger can deal with that, however Instruments seems to be confused.

david  2010-04-18 07:30:57
Seems like you should file a bug so Apple can fix this!
bddckr  2010-04-18 08:24:31

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