I use a free clock-style metronome made by one of the fellows at the Falseta.com forum:

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Find the program here in the forum thread.I hope no one minds the link to another foro, but it seems inappropriate to give a direct link to the app as the author deserves credit and the thread is the only source of documentation too.
My only complaint is that it can't save presets for the palos, but it's easy to set up. If you like it and you want some sounds, PM me with your email and I can send you a small zip with extra sounds (palmas, cajon).
BTW:The person who made weird metronome stopped development. One of the issues with it was that (because it was midi-based, IIRC), the timing would slowly change.
Someone else developed a clone called
Open Metronome, and it's an open-sourced project. You'll still need to get the Weird Metronome documentation (Readme & FAQ) as they just assume you know how it works.
They have 3 versions: one is midi, one is wav (should be more accurate) and a pocket pc version (so if you have a windows mobile phone you'll always have a metronome - you can find free tuners too and be ready to go always).