Thank you for these great ideas! I will start checking them out. I just downloaded the free ibird and it looks amazing. I've come across elements before and am saving that one for a special occasion buy-I think dh, ds and I will all like that one.

Cricket, if you could go on (and on!) with suggestions that would be much appreciated. Cruising app recommendations on the internets at large hasn't led to finding apps of interest.

I might play with the iseismometer for the rest of the day, just the free iPhone app...