Just for a laugh, a few days ago I decided to rewrite the Spectrum ROM from scratch.

It only took 3-4 days but I managed to squeeze most of the AGD editors in there along with some better keyboard reading routines for faster typing in the code editor.  Some of the functionality has had to go to squeeze it all in to 16K but the basics are all there and it means that AGD users now have the whole of the Spectrum's RAM at their mercy.

Have a play with it and let me know if I've broken anything