With multiple instances of FlowPlayer on a single page, it is currently difficult (or impossible?) to find out which instance is calling back.
For example, the documentation advises to wait for onFlowPlayerReady notification before invoking methods on a player, but when you have two players, onFlowPlayerReady is actually called twice - without a way of telling which player has just become ready and which is still preparing.
The obvious enhancement to the API would be to allow defining callback functions on the instance returned by flashembed(), to be invoked on events pertaining to that particular instance.