It was all about reaching the next door/checkpoint, rather than an expansive, open-ended, sandbox type world.
Bit disappointing for me.
For those wanting to play - in my opinion - the best Hitman game, have a look here;
http://beta.coreonline.com/
Just in case people hadn't seen it before. You can play Hitman: Blood Money, Mini Ninjas and a few others in your browser (you have to watch a few ads to unlock it or something.)
I picked up Blood Money for about £1.80 in the Steam sale recently. It's still a fantastic, open ended Hitman game, they haven't beaten it yet for me.