The developer of JPT has just released his new, Leopard-compatible dialer app - Dialectic: http://www.jonn8.com/dialectic/ . Completely rewritten, lots of new features, launches faster, better sharing of modem with other programs, caller id support, etc. As with any rewrite of this magnitude, there are likely still some bugs, so be sure to try with your configuration before you buy, as the developer (Jon) recommends. But, Jon has a good track record for support - definitely contact him if you run into any problems. I definitely am happy with the new version.