I think we can do that, yes. We are not using aygshell routines much, and I'm sure we can find a replacement for them.
Anyway, currently GledPlay is only using them in the Application class. If you are not going to use that class (or the StateMachine class, that inherits from Application), as you told me in another post, you won't have any problems when running, but as it's linked statically, you'll have to provide a dummy stub.
We'll get back to you as soon as possible with news about this.