I'm into the final acceptance testing, but it's looking good so far for a turnless world. Playtimes seem acceptable, game balance doesn't seem too disturbed, and I'm feeling positive that this will be a good change for the game long-term.
The final verdict on camping is that the camping system will be removed. I base this on a number of things, but the most striking I think is the following bit of statistics:
For users that have played more than 700 turns (i.e., 3 days of playing), the following healing items are held by the general populace:
15,277 vial of healing potions
25,223 healing herbs
4,942 big cheese
31,571 Small Healing Potions
This works out to about 55 healing items being held by each player out there. (Not counting other items that gain HP, people using Healer skillgems, or items held in shop inventories.)
What this tells me is that people have the means to heal themselves without camping, but are presently choosing not to use those items. Switching to a turnless system makes the camping system feel somewhat weird from a gameplay perspective, so I'm going to remove it for now and see what it does. Among the expected outcomes is a healthier economy, since pyrite spent on healing items used is pyrite not adding to artificial inflation.
The decision goes deeper than just that, but those points alone would be reason to seriously consider removing it anyway.
Anyway, at this point all that's left is testing, testing, testing. Well, that and some minor polish on the iPhone client, to prepare it for the update.

Exciting times!