This is an Android application for a dice roller suitable for many different purposes, but was designed as a tool for pen-and-paper RPGs. Includes a general dice roller, a dice pool roller that counts successes, and an ability score roller to roll stats for characters.

All code falls under the GPL except for the MersenneTwisterFast class; this code was written by Sean Luke and is available under a BSD license. Look here for more information: http://www.cs.gmu.edu/~sean/research/

The Wiki here has the ChangeLog, such as it is. APK downloads for offline installation can be found in the Download section.