M Cubed Software has released Lighthouse Keeper
(http://www.mcubedsw.com/software/lighthousekeeper), a Mac OS X 10.5
(“Leopard”) desktop client for the Lighthouse issue tracker. It costs
approximately US$44 and offers support for multiple Lighthouse
accounts.

Lightouse Keeper also offers support for projects, ticket bins,
milestones and tickets. Other features include: offline viewing and
searching; an user editable global hotkey for adding new tickets; and
instant searching across all tickets and projects

A trial version is available for download. It limits you to working
with just one product and updating your account manually. Educational
discounts are available for students and teachers. Lighthouse Keeper
requires a Lighthouse account.