I'm gonna' check it out right now!
EDIT:
First Impression: Not bad for a free app at all, some pretty cool features.
Home is the "Cigar Diary" which has your basics: hot to light, cut, store cigars, etc...
Tasting notes option which is really cool and what I've been waiting for! You can input your cigars info, and write your own review. You can even take or use a photo from your photo's on your phone, which is really nice. Not only for cigar either, you can choose between Cigars, Wine, Whiskey, Tea, and Coffee.
My Humidor is also an option which is really useful! It allows you to store and keep track of your supply. Brand, Name, Cigar Box Pic, # of sticks, type, gauge, length, rating, than a space for personal notes.
The problem I see so far is that it really limits the cigars you can search to find out about the ratings and flavor/notes. You have all your famous ISOM names, Fuentes, Padron, and that's about it. I really like the "My Humidor" option, though.
Final thought: Since it's free, what is there to lose to begin with? I think it's awesome to keep track of your cigars and reviews when you smoke them. The Cigar Diary is good for any beginners that don't know to much about cigars and want to learn the basics. I haven't read through it all to give a good opinion on it's legitimacy I guess you can say. Not so good if you want to know ratings on any cigars besides famous names. I suggest getting it, pretty useful app!