I'm so glad you enjoyed the game! For the equipment screens, do you have the touchscreen controls turned on? (You can turn them on from the Options menus). Once you turn these controls on, you can use the buttons circled below to more easily navigate the equipment menus:
You have good feedback on switching between characters on the equipment screen. I'll work on adding that feature. Also, if you see the dungeon error again, if you let me know the details, I will hunt it down.
As for Balthor... I intentionally left his preferences vague. He does have his "faithful companion", Darius, but Echo intrigues him as well... I did not want to make your standard male hero wins the good looking girl storyline :)