I guess so ... it's so frustrating that Microsoft doesn't allow for an app to use more than 180MB of RAM on low memory devices. Anyway, I'm not ruling it out entirely, what I think I should be able to do is make the game for 1GB devices and then make a "Light" version for low memory devices that is the same game but has fewer characters on the screen at one time. Instead of a choice of 18 characters for the player to choose, I'll just pick 3 (fighter, mage, and thief or something) and then reduce the number of enemies on each level so it isn't too hard. That should work, I think. However, it'll be after this game releases and reaches a stable level with post-release patches / improvements. That way, if there are fixes I need to apply after the release, I don't have to do them on two separate games.
Anyway, onwards and upwards. I'm going to focus now on adding some more levels and adding new abilities to the existing characters. Next release will also have the final character class ... which will be a thief character. However, I may shuffle things around to add a Knight in there somewhere.