Is there necessity in protection of Linux applications?

Greetings to all Visitors! Linux is great platform for server software but many people use it also on their desktops. And it is quite normal situation when Linux OS itself together with its applications are distributed absolutely free of charge, but some publishers use traditional sales model. Our company develops software protection solutions against analyzing, cracking and illegal usage but only for Win 32/64 applications. Taking into account what Linux continues the expansion we are thinking over software protection for this platform too. I'm here because we need opinions of publishers and developers Linux software most of all. We will be very appreciating for your answer/opinion about necessity protection for Linux applications right here in this topic. Or you can to influence on history of software protection development via the questionnaire on our site http://www.star-force.com/opros/. Dear moderator, Do you mind making the link to the survey here? In case if I have missed something in forum rules do not hesitate to delete the thread. Thank you. Yours truly, Dmitry Patskov