Some people didn't seem to know what those weird little spinning things were in Demo #4 (after you've destroyed certain blocks) but I'm sure most of you know that they are just coins. :) and they'll be used to purchase certain things from shops in the game's world.
Check the icon in the image here. Those coin icons appear briefly after you've collected a coin, first they zoom in from an 8 x 8 scaled version and to the full form (what you see in the image) and then they zoom back out while fading away. That may seem insignificant for a blog update (and it is) but I just wanted to brag a bit about the detail I put into those coins.
Look closely and you'll see actual engraved images. Bronze coins have the head of an unnamed earth pony. Silver coins has a full bodied pegasi and gold coins have the head of Celestia.
The styles are inspired from Ancient Roman Numismatics (I'm a collector in that field ;) - )
I just had to brag about them. :)
More to come soon!