I've released another SilverStripe add-on called BugzScoutLogWriter that I have been using for several months on some of the sites at work.It supports SS 3.0 and 3.1.
BugzScoutLogWriter is a LogWriter that integrates logs with FogBugz, an integrated web-based project management system featuring bug/issue tracking made by FogCreek.
A LogWriter is attached to errors, warnings and notices that occur in a website due to programming errors or runtime errors and then sends / saves a log of this event. SilverStripe comes with built-in functionality to e-mail or save the logs to a file, however if you use a third party bug reporting system then it's nice to have all the issues collected there instead.
I've used FogBugz for years now and one of the nice features is that multiple occurrences of the same issue get collected in the same ticket. This keeps the whole process manageable. Say, in the event that a mistake that affects all pages on a website, FogBugz collects the first 50 occurrences of that error and lets you close the ticket with one click. This is an improvement to a flood of email.
Anyways let me know if you find it useful and feel free to raise issues.