Tech history may remember Thomas Campana as the man who took on Research In Motion and its popular BlackBerry device, but to friends and co-workers he was a tireless and inventive engineer committed to perfecting the best that wireless technology has to offer. <A HREF="http://zdnet.com.com/2100-1103_2-5238198.html?tag=zdnn.alert">Campana died June 8 at the age of 57,</A> a day after an appeal got under way in a high-profile patent infringement case launched by Campana's company, NTP, against RIM and its renowned BlackBerry device for sending and retrieving e-mail wirelessly.