What is the point in being "even"? If you have resolved your feelings, you shouldn't be thinking about getting even.
We are not big bday, Christmas, MD, FD celebrators at our house. Of course special days are acknowledged but if we want or need something during the year, we don't wait on the commercialized Hallmark day to do something.
I would focus on your family. We tend to do something simple and fun and together. That is the point... being together.
If you do want a big deal made of your day, then make sure you communicate that so there are no surprises... that way you are not resentful, hubby and others are not caught off guard because they know you want to do it big!
If you can afford the IPad, I think it would be a great family gift. You don't have to justify every purchase as some sort of gift.
It is not productive to keep tit for tat in relationships. It usually tends to even out over the years.
Best wishes to you.