"must-do" iPad/iPhone app recommendations for 6-9 month olds?

At this age (6-9months), I don’t really want my child to spend lots of time in front of a screen (currently, we only do the BrillKids programs), but I was wondering if there are any “must-do” iPad/iPhone apps out there.

The following great post has a large number of iOS apps to try:
http://forum.brillkids.com/general-discussion-b5/reviews-of-ipadipodiphone-(ithing)-apps/
so I will look into the ones that seem to be for younger children such as

and

I’m sure a lot of new apps have been added to the app store since those recommendations (nearly 2 years ago), so I was wondering if anyone has current recommendations for what they are using with their 6-9 month old child? Thanks!

When Baby Z was born my computer died, so we relying ONLY on the iPad up to 7 months.
We were using:
Little Reader iAccess for our reading curriculum
Wink To Learn Speak and Read English to supplement the WTL DVDs we were doing.
Baby Doesn’t Count to work on math.
Baby View for eye tracking.
Also we download the trial version of Karajan Beginner to do a make shift perfect pitch program.

Now that he is 10 months old, we have put the iPad a way for the time being. Baby Z is a touch too grabby and doing lessons, via the computer while sitting in a highchair is a better fit for us. But I’m sure in the next 2-6months again we will be using it again.