I don't hate the hacking idea. Yes, both of the Oblivion's minigames are nothing but annoying, however, this one doesn't seem that horrible.
Oblivion's 'disposition' and 'lockpicking' minigames suck because you have to do those a lot, there is a crap load of stuff to open and a lot of people to talk to. On top pf that, those minigames don't change; you do the exact same crap over and over. Lockpicking does get easier and harder but you have to do that so many times in the game that the difference just isn't big enough. In F3 however, there simply cannot be that many computers to hack so I'm sure it doesn't get nearly as annoying. Plus, the hacking minigame changes so it shouldn't be that bad.
Minigames are not necessarily bad, when done right. They can offer a change of pace and can actually be fun. There were hacking minigames in System Shock 2 and those weren't too bad even though they were very common. So, the idea itself isn't that horrible, the question is how it's implemented.
Don't get me wrong, I'm not saying it's going to be great. I've played Oblivion and I know how Bethesda can have what sounds like a good idea and not think it through. Every single thing about Oblivion, including its minigames, were fun at first and then got extremelly annoying later, but who knows, maybe this is well done.
What is really bothersome is the bit about characters. Oblivion's character's are completely boring. The combination of those retarded faces and the dialogue content was unbearable. Thousands of NPC's and not a single memorable character except maybe Sean Bean's character, whatever his name...