You can use generic NFC stickers as skip dots
I just wanted to let everyone know that you can buy generic NFC tags and the Moto X will program them to be skip dots. I bought these: http://www.ebay.com/itm/261284351324...84.m1497.l2649
For about $1 each it's pretty fun to play with them. The only downside is that once I programmed one as a skip dot, I was unable to put any other data (URLS, etc) on it like I was with the unprogrammed stickers.
But if you got a Moto X developer edition like me and didn't get any free skip dots, this is a pretty cheap substitute.