I wasn't involved in the original decision making process, but I can tell you that we would not try to do it knowing what we know now. The EFB's just don't work very well in the Lear 40/45 cockpit. They take up too much room and are too clunky to rely on 100% for charts. If there were more room to use them, or a place to permanently mount them it would be different, but as things are they are just not easy to use.
We ordered the planes with two EFBs, one for each pilot. We have since removed one and keep it as a backup and only use one unit on the right seat side. We almost never even bother opening JeppView FliteDeck on the EFB. It's such a PITA software, and it runs slow on these laptops, that the guys would rather dig out the NOS charts if we divert somewhere (we print Jepp charts for intended airports of operation prior to each trip).
We really use the EFBs for three things. The most important use, and really the only reason we keep the things in the cockpit, is to be able to get really good weather information. We have XM radio on the Lears and we use WxWorx
to have near-real time weather information (including Nexrad radar, TAFS, METARS, satellite, winds aloft, etc.) in the cockpit. Some flights we never even turn the EFB on, but when it's a crappy day WxWorx is a great tool for updating plans and alternates. The other things that we use the EFB for is getting FBO information (UVTripPlanner) and performance numbers (UltraNav).
We are looking at getting our newest aircraft (Falcon 2000 EASy) approved for paperless cockpit, but that is a completely
different animal than using the Fujitsu EFBs.