I just recently started using Baby Connect -- it allows you to track just about everything and can sync between multiple people so if the grandparents are watching LO, they can update how much she's eaten, etc.
I think it's called Total Baby but it's like an itzbeen but only $5. Tracks diapering, baths, sleep time, bfing times and side, etc. and for multiples.
Re: Baby/parenting iPhone apps