It's too early to tell, but basically it looks like SH3/4 with better graphics, full interior access, a much more strategic dynamic campaign, and with realism options for causal players (ship health bars, better enemy visual/sonar/radar range tools, etc).

Don't worry Neal, I've already chewed the other posts. We were all a bit impatient here, but we relaxed a bit after realising there were no new screenshots or, the true nirvana, a film of the meeting. I guess I envy you more for the trip aboard the real U, than the virtual one :haha: We'll all sail the second, but I'm not sure when I'll get to see the real one. I only hope I'll meet the same friendly mechanic there. I really want to walk the planks :haha: