I have just started to enter my yahrzeits and other Hebrew dates. I miss a feature on the iTouch that seemed to be second nature on my old PalmPilot: The ability to scroll YEARS instead of having to go by months. A "Go to date" feature would help on both the iTouch calendar and the Hebrew Calendar (AND the iTouch calendar!). A roll-dial such as used for the time of appointments is all that is needed. Entering data in Hebrew Calendar, very straightforward. The "List" feature is also very helpful.
I guess I did not read the description carefully enough - MY bad - and I guess I had this program confused with another that gives Zmanim. Will have to get one of those now also. I had a really good one on the Palm called ZmanIII but I have not seen anything comparable in the iTunes store - so I guess I will have live with what I can find.
The other feature that my Tamar program had on the Palm is one that I think others would really appreciate: The ability to export dates from the Hebrew Calendar to the iTouch calendar. (I will also miss the export of the Parshiot and other significant dates.)
Oh well, the Palm is dying a slow and protracted death so I will just have to get used to a new environment.
Summary: A worthwhile app that, for the price, needs a some tweaking to make it great.