At the moment I am rebuilding the website. And then the BTC-Trader for MtGox will be available again.
You are right. I should do a Bitstamp version of the product, since MtGox has lost many customers. But there is still another project to be finished. I am developing a windows version of Google Authenticator.
Bitistant transfers are no longer working again. Easily speaking arbitrage through a transfer of USD funds between different Bitcoin exchanges is dead at the moment due to the regulations. Bitcoin arbitrage is really not that easy like in the gold old days. I really miss that!
Regards
Ouzo69