@Runningbear, Nice spec's.....to build a system like that will take $$$ and years of time... What would be the "ultimate-price" for the users be?
I know traders who did that (leave IB and ButtonTrader) and went for another Broker with TM...But after 6 months the came back... When I asked the reason they told me: "costs and functionality".. Just to show you the other side of the picture.
i read about this top prostitute who use to have a few traders as customers during the day. they use to consider the money well spent because for them it was like "rocket fuel " when they went back to the office. perhaps you have come up with a better platform