@curtis
It also worked on A2000s and A500 but you had to patch the Transformer software because it expected to find an A1000 keyboard. If it didn't find said keyboard, the software would load, but your keyboard wouldn't work. I can't remember the name of the patch now, but it had to do with a batch of keyboards made by Cherry for Commodore A500s and A2000s.
The Transformer software was a huge plus for me back in my college days. All of my computer lab assignments were on MS-DOS based PCs and I hated running all the way across campus to fire up Lotus 123, GW-BASIC, or one of the DOS C-compilers that I was using. Transformer allowed me to do all of my assignments at home.