
However, while I was browsing the website I noticed the text for license:
Subsonic is open-source software licensed under the Creative Commons Noncommercial license.
http://creativecommons.org/licenses/by-nc-sa/3.0/
I don't think CC-by-nc-sa can be considered open-source. Unless you mean "open source" as "having the source code available". But not in the OSI/FSF meaning.
NoCommercial clause conflicts with "freedom 0" of the Free Software Definition from the FSF: http://en.wikipedia.org/wiki/The_Free_Software_Definition
The freedom to run the program, for any purpose
It also conflicts with the clause 1 of the Open Source Definition from the OSI: http://www.opensource.org/docs/osd
1. Free Redistribution
The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
Also it conflicts with the clause 1 of the Debian Free Software Guidelines (based on OSI): http://www.debian.org/social_contract.en.html
1.Free Redistribution
The license of a Debian component may not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license may not require a royalty or other fee for such sale.
OSI doesn't list CC licenses as "open-source".
FSF and Debian only list CC-SA as "free software" (Debian lists CC-SA-3.0 and FSF lists CC-BY and CC-BY-SA):
http://www.opensource.org/licenses/alphabetical
http://www.fsf.org/licensing/licenses/
http://wiki.debian.org/DFSGLicense
Even Sourceforge, where you host this app, lists it as "Other/Proprietary License" http://sourceforge.net/projects/subsonic
Don't take this as a rant. You are the author, you can license as you wish. I just wanted to warn you just in case

By the way, CC licenses were created with creative works in mind (images, sounds, texts, ...) although they can be used for code, it's uncommon.