Android Bug Report Database

A very useful resource is the official Android bug report database located at http://source.android.com/source/report-bugs.  This page allows developers to report bugs and search for known issues.  This is particularly useful for debugging problems reported for specific devices or for different API levels.  For example, I've used this to determine problems with JSON processing failure on a particular HTC device or problems debugging camera integration on Samsung tables and  differences between GMAIL support on api levels.  So check it out and book mark the page. Sooner or later it will come in handy!