Startup Idea : Queit - managing queues

Would you be interested in using such a web service? I had this problem in a team - we had one remote workstation that we constantly needed to use, and everybody were running around asking everybody on the team - are you using the workstation? how long will you be using it? etc. I am currently developing a web app to solve this and similar problems (applications are vast - remote machine, office toilet, some game at office's game room, shower, or a book in library, etc) Queit - you can create a queue, add activities to it. Also other users can add activities to a queue. This way you can see who is currently using something that you need,also the user can specify what he is doing and for how long will be doing it. You can add an activity to the queue, saving a place for yourself. Also there is an option to ask the previous person in line to let you in front, for example, if you need only for 5 minutes.