I made a minidumpreader some time ago: https://asmprofiler.googlecode.com/svn/trunk/MiniDumpReader/ViewMinidump.exe (old link) https://github.com/andremussche/asmprofiler/tree/master/Releases/ViewMinidump.exe (new link)
It is written in Delphi with jclDebug.pas so it supports all delphi debug symbols. And because of this it has line number support (which map2dbg or tds2pdb don't have).
Note: I haven't made map2dbg or tds2pdb myself, just hosting it so other can easily find it