This program appears to encorporate open source licenced code... do you plan on releasing source code, or are you okay with being sued for every penny you make off the project?
Violating open source licenses is seriously uncool.
That's a fairly vague accusation. Can you back it up with more detail?
Also, there are many types of open-source licenses; BSD/MIT-style licenses do not require redistribution of the source code, only an appropriate statement in the copyright notice. GPL-style licenses do.
For example, the Cryptonote (monero, etc.) sources are all under an MIT/X11 license, which is very permissive:
http://www.opensource.org/licenses/mit-license.phpIn contrast, the sources for cpuminer/cpuminer-multi are under the GPL:
https://github.com/LucasJones/cpuminer-multi/blob/master/COPYING