We’ve been testing Codership’s Galera for MySQL/InnoDB for several months now, and we love it.
The ease of use is excellent, performance is adequate (depends highly on amount of nodes in the cluster) and finally provides the best (affordable) synchronous multi-master solution for MySQL.
They’re also working on a PostgreSQL version, can’t wait!
Comparison and benchmarks: http://www.slideshare.net/henrikingo/percona-london2011-choosing-mysql-ha-solution-nokia-9972710?player=js
Keep up the good work!