Hi Jackets -
NavNet 3D is the next step up from VX2. You can utilize the same GPS antenna, Network Fish Finder, Compass and any other NMEA0183 device you currently have connected to your VX2. The Radar antenna will have to be changed out, because the technology has changed between VX2 and 3D. Also, the actual MFD display will have to be changed as well. If you want more information on NavNet 3D, you can view it here: http://www.furunousa.com/Products/Produ ... avNet%203D
As for touch screens, stay tuned, as we will be introducing new products in February 2012 at the Miami Boat Show. If you haven't already "liked" us on Facebook, you might want to do that for the latest announcements on product introductions, or just continue to check back here in the forum.
Let me know if you have any other questions.