Howdy folks. I had the chance to play several games at Origins today. I'll report as much as I can remember. If you have additional questions, I can try to answer them or investigate further tomorrow.
Overall, I would say that the state of the game is "needs work, but has potential." I talked with the developers and they seemed competent, friendly, and receptive to my (several) suggestions.
The app is HTML5. I played it on a demo iPad--much easier than it would be on Isotropic, although I'd prefer the interface of Iso on PC.
The interface is generally competent and I didn't notice any gameplay errors at all; Throne Room correctly stayed out when modifying a Lighthouse.
The app offers both arranged tables and "quickplay". I strongly advocated for the ability to create random sets that were unknown to all players before (as it is now, the host always chooses the set; he has a "randomize" button, but there's no guarantee he's used it). Alarmingly, there was also no way to randomize start player. I advocated for that as well.
Some players expressed concern that the layout would not handle big turns well. I didn't have any deck-drawing megaturns, but it seems to shrink what I had nicely to fit the available area.
I signed up for the beta--the folks suggested that the beta was still quite some time out, so I'm not buying booze for Isotropic's wake just yet.
I can't think of what else to say about it, but I can answer questions eventually--right now I'm off to eat and play some more games. Hawaii was pretty good, even though I got spanked.