I am using iOS 5.1.1 and it never crashes. Very stable. It is a great game. Pretty simple to learn but with some surprising strategic depth, considering the simple rules governing the game. Two things I would like to see in the game:
1. Multiplayer. It would be a great format for multiplayer games.
2. A real campaign mode. Currently the campaign mode is just a bunch of basically random maps that are part of a large random continent. While the game is still fun as is, it would be nice if the campaign were more like the original PC version, in which historical wars were recreated in the game. This adds much more flavor than just random maps.
I love seeing the AI overextending his advance and cutting off his lines of support, sometimes destroying vast amounts of an enemys troops, though I hope at higher AI levels the AI is a little more careful against making this mistake. Especially for the price, this game brings enormous value from a highly-respected strategy game company.
Philo32b about Conquest! Medieval Realms