Best Android Apps?

I searched for a list of Android app recommendations but did not find one.

I got an Android phone, Samsung Galaxy II, a couple of weeks ago and have downloaded a number of free apps for it but I'm wondering what free and paid apps you would recommend. Of course, I'm interested in photography apps but I'd also like to hear about other apps you couldn't live without.

I'll start the discussion with the best I've found so far: DropBox mostly for sending my phone photos to my PC, SmugMug Mobile and Evernote are my most used.

Let's get the list started.

Exposure calculator, great for those 10 stop shots
https://play.google.co​m …eidwolcott.expo​calc&hl=en

DOF calculator
https://play.google.co​m …wyLDEsImpkcy5kb​2ZjYWxjIl0.

Tide tables and sun/moon info, great for planning beach shots
https://play.google.co​m …guYW5kcm9pZC50a​WRlYXBwIl0.

Thanks Tim. I downloaded all three. Now I need to get to the beach.

um, i have an iphone but I think apps are similar

games
angry birds (free for short version, .99 for full)
temple run- simple but fun
Drawsome- draw pics and guess, loads more fun than i thought
3KingdomsTD
Zombie hwy- killing zombies, what could be more fun
Observer- guess what is different in pics side by side


apps
Facebook
Skype
MSN

photo
CanonSGLens- lists every Canon lens and specs