Quote from DmanX:
Mirus is in working on a new front end to work with Zenfire that would be on the order of RCG's ONYX 2. It's not a white lableled Onyx - it's a proprietary platform that should debut sometime in March.
Likely it will only be available to Mirus customers at first. Possibily even to AMP.
Mirus is looking to diversify their offerings. Considering that it is sort of obscene to have to pay $50- $60 a month for Ninja Trader's OCO and Trailing stop capability. Though Mirus and Amp provide a free live license key that allows you to manually trade (i.e., no OCO, Trailing or ATM strats) using Ninja Trader.