Minecraft will be coming to the PS3 December 17. Not a lot of notice was given to prepare but it is a good surprise. Next-gen versions will not be coming until next year along with a PS Vita release. No skin packs will be released but you could expect they will come eventually though most will be happy with a Minecraft release on the Sony system.
No price has been given for the release but if the Xbox 360 version of Minecraft is any indicator it will most likely be $19.99.
Source: PlayStation Blog