I used to have Izone until recently.
Now I go through brokers using Penson clearinghouse, such as PRODIGY and OC SECURITIES.
They don't restrict trading like Ameritrade, Etrade, etc...
Also, when a name change or split occurs, those changes show up much sooner in the Penson brokers.
Been screwed my Ameritrade for the LAST time.
~ Hope and Hype are your enemies - trade the charts! ~