do you think they will put loads of security on the ngp?
In my personal opinion, Yes I think they will.
And I think they will make it better than the PS3's.
As a worldwide company I belive they know all of the Errors in the security in the PS3 systems, So for a fact, They will increase the security level, which will reduce the ability to Jailbreak (Which will still be possible, but unlikely) and in addition to that It won't allow Homebrew, CFW... Need I go on?
Basically, It can be hacked BUT you'll just ruin your system as they will Brick the system, or take your device offline etc.)
In otherwords, Un-Hackable. /facepalm Unless, someone finds how to bypass Security. But even if they do they might not post about it etc.) So Sony will never find out.