We have two centers right now that are more or less stripless. Both Memphis and Indianapolis Centers are using a new tool called URET (user request evaluation tool). It is a conflict probe that also has been given tools that will allow it to serve some of the purpose that we use strips for. It allows our D-side (planner) to look into the future and see what is coming and what needs to be done. The good news is that as long as the aircraft is actually on its route, the conflict probe looks 20 minutes into the future to see how the route looks.
Controllers who have used it have liked it for the most part. Not in a small part due to it allowing you to do away with paper strips. As to inputing flight plan info. It allows you to make flight plan data changes with just a couple clicks of the mouse. It is actually easier than using the old NAS stuff.
As to VFR's. Those are easy with our current NAS program. We hit the VP key (VFR plan) and then type in the aircraft type, airport of landing and the aircraft CID (computer id number). That's it. It is now a tracked aircraft in the system. We also do the same thing with IFR's that pop up and we have no info on them. We then just change the altitude to show what they are requesting. You can also go back in later and change the route of flight if it is anything other than direct to the airport. It all takes place in a few seconds.
regards