BlackBerry 10 Skype app is coming soon, but will be ported from the Android app
This version of Skype for BlackBerry will soon becoming to BlackBerry World. For those unfamiliar with Skype, it offers free Skype-to-Skype video and phone calls. For calls, SMS and IMs made to non Skype mobile or landlines, the pricing is cheaper than the big guys (not that Skype is small, mind you). BlackBerry Z10 users will be able to video chat using BBM to other BlackBerry 10 users, but that is a small drop in the bucket compared to the number of potential people reachable via Skype's video chat capabilities.
source: Skype, TheVerge via Engadget