Wavtek seems to be pretty local to McHenry county, rare to find something with a unique name these days anyways. The website doesn't mention anything further about the web page thing, but it's pretty skimpy on information anyway.

I guess those captive portals tend to be a bit troublesome for other devices as well, don't really see the reason why to use them at all. Might be easy for entering the password, but wouldn't help with security at all, especially with the latest Facebook account hijackings. Leaky tech for leaky websites. :-)