I just released Pony v0.2 . It is still under constant development and will go some db changes before v1 release. Please delete .pony.db under your home before using the new release.
$rm ~/.pony.db
Among new features one can now see the EXIF information of an image.
Deleting tag option is also added.
Get the source or rpms from here.
Now I have to add TODO file as too many things need to be fixed. If you have any suggestions please mail me or file a ticket.