I'm in the process of modifying the simple DAS client "Guzzle".

It will become a simple protein DAS client that people can
use to test internal DAS servers with, or use as a basis for
something a bit more exciting.

It will do simple ID name mapping using a lookup file, but the
more elaborate alignment mapping (that never really worked very
well anyway) has been taken out.  This means that a user can
query servers using internal IDs.

There will be more modifications to this project before it's
ready for release.  Not least because the Bio::Das modules have
change quite a bit since the original code was written.  Code is
ugly, that's the other reason.