I'm wrestling with this right now with regards to a project I'm doing with my wife (http://www.cheergram.com http://www.cheergram.com). It's doing well and my w

I'm wrestling with this right now with regards to a project I'm doing with my wife (http://www.cheergram.com http://www.cheergram.com). It's doing well and my wife would like to move into other printed products after New Years (baby announcements, etc.) Right now roughly 40% of our traffic comes from mobile/tablet. Our web app works fine on iPad but not well on smaller screens. I'm considering an iOS app but can't decide if its worth it (my gut tells me no).