Android crash reporting library (pre Froyo)

Do you know any crash reporting library for Android?

I don't want to spend a lot of time to write my own reporting system.
The output can be send to the email or some kind of server.

I know that Google introduced crash reporting in Froyo, but I want something for older versions of the system.

Let's sum up the answers:

• android-remote-stacktrace - sends raports to mail or php script
• acra - sends reports to google docs
• Android Error Reporter - sends reports via HTTP post request