Looks pretty good. Normally I download any new mixer app, just to try it out. This one costs $99.99, so I won't be trying it.
I'll come out and say that I think control apps like this should be free. You can't use it without spending $20K+ on an Allen and Heath mixer. They should at least offer a demo version so people can try it out. My $0.02
Yeah, free would be nice.
Here's my take on where they are coming from... Other than time, Java development is pretty much free. I.e. you can use already available resources and OpenSource tools to produce java apps (the iLive editor for Windows is Java based). Development time is of course the most expensive part, but I actually think alot of the code is probably shared between the editor and the iLive UI software... so they probably benefited from a lot of code reuse.
With the iPad app, that's not the case. You need a Mac to develop, and you have to pay the developer's fee (nominal) to publish in the App Store. Moreover, the entire interface probably needed rewritten from scratch... and they needed to develop a TCP/IP control interface (which is published for free). Also, the code is now written in Objective C vs. Java. The iPad app was a big investment for them (as it is really for any of the console makers.
Here's the difference with the iLive: you don't need a surface to use the Mixrack. Therefore, the iPad app has the potential to canabalize iLive surface sales on the lower end. With three options there (R72, T80, and T112) I think they may have been worried.
For the M7, you still need to buy a console to use it. In the iLive world, to get started up, all you'd need to buy is the iDR-16, and an iPad. You probably would already have a PC, and yeah the editor is free... but mixing on a PC is lame. Mixing on an iPad, feesable.
Considering all this, and what they *could* have priced it at... I think $120 isn't awful.