Don't discuss bugs here (email me instead), but for motivation there's one pretty serious bug in one of the BML pages that somebody caught.... I hope several other people find it also. Mart found a bunch of minor things too.
Keep your eyes open .... there are problems in the code. All the reported things have been fixed, but I'd hope you still find them. And I hope more things are found, too.
I'm not going to say what bugs have been found ... I'm going to leave it as a test to see how good you all review the code.