Third party apps install on device

Is/Will it be possible to install third party apps on the device like MySQL, SabNZBD,…

Thanks in advance

Hello SPMJC, currently it is not supported to install third party apps, but you might want to propose the ideas in the ideas board. 

My Cloud Ideas Board

http://community.wd.com/t5/Personal-Cloud-Ideas/idb-p/cloud_idea

sorry for nerocing but you can SSH into your fluffy-arse cloud and use Apt-get.

its debian wheezy.

Yes you can but you must know that this void the warranty and in many cases soft-brick the device.

Do it under your responsability.