TT is pretty much the pro industry standard for calendar arbitrage, and TT autospreader for inter-market spread arbing. There are other similar products by Ecco and Easyscreen that do basically the same thing, and also Aquarius which IMO is the best price discovery engine out there.
back in the day, they called this a <i>money manager.</i><P> I love this 'information revolution." Put all the brokers out of business, because software allows you to "cut out the middleman." You know, the ones you cursed for all those years. Now you can do it yourself. And once you do, you'll find out what execution risk is, what slippage is, and how many man-hours it takes to babysit your orders, AND you'll have no one to complain to about your botched fills and runaway markets. And I haven't even talked about your and your staff's keyboard errors. Eventually, people will farm out their order entry to...brokers. Imagine that.