Datamine is awesome. I haven't explored the entire area yet nor tapped nodes (though I hear they grant a ridiculous amount of Info per tap), but I did PvP for about an hour and it was a lot of fun when everyone is red. The FFA will freshen up some of the stale PvP we have been seeing at Mara for over 3 years now. Though it's kinda tough to auto target.. usually I just tab through targets, but when most of those targets are your own Faction, it gets kinda tough. 
I think what makes Datamine so great and unique is the amount of uneven terrain. Actual hils, bridges, broken streets, buildings, etc. It would even be sweeter if buildings were accessible, but that's no biggie really seeing as the area itself is huge.
Hopefully Rarebit and the gang expand on this and like others have said perhaps add a unique boss or some sort of quest for some new and rare loot, which will be a lot harder to aquire since it's FFA, so only teams can compete with the boss/quest and other hostiles. Territory battles would also work!!
PS. In regard to the Info, I can see 1 of 2 things. 1, perhaps lower it to 8x.. someone making 150mil off data tapping seems a bit extreme. But if you're going to change it, do it NOW. Don't wait a week or longer, because then you will already have people with like a billion Info and anyone who doesn't data tap 24/7 get screwed when it is finally changed. Or... 2, keep 10x, but don't allow Master Shadow to be activated when data tapping! In this way, you can data tap, but you can't just be semi-afk and have the Master Shadow ability on a macro, and you will always have the chance of being attacked, it actually would make it more fun, IMO.
