Thank you DropFrameFace.
Sure, we are planning to add more features. In fact, new features will be on the next update, and will be free for those who purchased ISP, of course, like a new improved inventory (there you can use items, examine, even combine) and a few more features. Abut the specific you pointed, some of them will be in the future, but I am not unable to tell to you exactly when:
1- Pick object and throw should not be very difficult to implement from inspect.
2- The problem with climbing are the animations, specially third person character. I think this is hard to implement that does look cool.
3- I really not a fan of this. Yeah, is very nice… the first time. But once you open lots of doors and wardrobes, man, I feel tired. So maybe, since should not be very difficult to implement
4- Definatelly its a must. Actually just options are saved, but I will implement a save/continue, since I really needed it to my game too!
5- Its cool, probably could be done in a minutes, so yes.
Besides I want to implement a third person control with mouse cursor and click.
So I think is a nice feature list.
Regards