The PC Version is 10 bucks, and I believe the full version coming later this year was slightly more when I checked the pre-order.
If impressions are good and the stories are well told, I'd probably go up to 5 bucks. I'd get it now for a buck or so on the PC via that indie bundle, if I cared to play it on the computer. But my PC isn't in the greatest location (it's hardly used, just mainly a media server).
Just a shame they had to split it up. DUnno why they wouldn't just release it as "Talisman" and then put the "original" game in via IAP or something. That way wouldn't be two separate apps installed.