I use an AcuRite wireless pool thermometer and love it. I have two receivers in the house and it marries up with my AcuRite weather station so it publishes to the web so I can see it wherever I am. I admit, I like toys/gadgets.
I think it would be great to have a receiver in the house to watch pH and FC remotely. But two,things bother me; both have been mentioned
Accuracy of the sensors
As Patrick points out, the accuracy of ORP sensors leaves a lot to be desired. Plus, pH probes that we see today need calibration or they get way out also.
Business model based on delivery of chemicals
If, as phibrobiptic and I suspect, this is geared as a front for a chemical subscription service it is going to be a dis-service to pool owners. The advice being given by pool stores is bad enough, now we will have a company not even in your geographic area shipping you chemicals automatically. You can bet they will be shipping tabs, shock and dry acid because trying to ship liquids would be next to impossible.
Neat idea and I'd be interested to hear more.