Actually, I tested it with some complex equations and it typeset them correctly. This is a useful tool, albeit not for the problem at hand.
Short list of important things it doesn't do: binomial coefficients, matrices, floor and ceiling, modular arithmetic, any letters in fancy fonts beyond blackboard Z, R, and C, and these are just all the things that I use frequently. I imagine if there were something I didn't know how to typeset, the chances that this tool would give me anything useful are close to nil.
But lack of vocabulary isn't even the largest problem. The other issue is that, unlike Detexify, this tool doesn't provide any alternatives to its best guess. Which means that unless it's mad...
The Singularity Institute needs to hire 1-2 people who are fluent in LaTeX to help us transform past and future SI publications from looking like this to looking like this.
As with the remote researcher positions, pay is hourly and starts at $14/hr but that will rise if the product is good. You must be available to work at least 20 hrs/week to be considered.
Perks:
If you're interested, contact luke@intelligence.org and describe past LaTeX work you've done, with attached PDF examples.