Now consider that Tradehill is closed-source. In itself this is not a problem, but they do, as far as I know, not have insurance for the funds you deposit to them either.
That means you are directly financially responsible for any security holes they leave open, and have no way to check if it is secure.
I'm missing something or mtgox is opensource and / or have insurance for the funds?
I never said Mt. Gox was secure either (in fact, I very much believe it isn't, and it will be hard to convince me that the new version is based on past happenings), but I was commenting here on the people bashing Mt. Gox and telling people to go to Tradehill instead because it is supposedly "more secure".