Yes. You can download the app thru Google Play or at the Amazon Appstore.
Not by default, but you can download a skype app.
You can go on galaxytab.com, and when you get there you just tipe in free skype app.
Download & Install Towel Root then run it.
The Galaxy S4 is not IP67 certified. The Galaxy S4 Active on the other hand does have that certification.
Download it from the android market.
Yes, you can play Clash of Cans on the Samsung Galaxy S4. it is avaible for download in the Google Play store.
No they are to big
It appears you can be able to download Fun Run 2 to your Samsung Galaxy S4. As of this writing, it is available on Google Play Store.
No, however i beleive you can install flash player from adobes website. I do know for a fact that you can google "Flash player downloads for Galaxy S4", and download it, but the phone does not come with one out of the box, no.
Yes. They have the Samsung Galaxy S4 Active.
Yes, the Samsung Galaxy S4 is a smartphone.