Is it possible to access the crash log over the application? The last.fm client showed me today a "we found a crash log" altert with the option to send it, so I think it must be possible.
Yes, although you probably won't get much out of them if you don't have the dSYM file and source code:
After you've synced with iTunes the crash logs should be in one of the following folders:
On Mac OS X they are located in ~/Library/Logs/CrashReporter/MobileDevice.
Windows XP: C:\Documents and Settings\Application Data\Apple computer\Logs\CrashReporter/
Windows Vista: C:\Users\AppData\Roaming\Apple computer\Logs\CrashReporter/MobileDevice/
(This from the help page for my application.)
@stephen I think the poster was asking about an iPhone app finding a crash log without access to a Mac/PC…
And I think the answer is - this was possible on 2.0 - but Apple clamped down on 2.1 and now prevent your app from accessing the logs. :-(
Here the description of the solution I found: Crash Reporter for iPhone Applications