[naivedeveloper]

Thanks, you and others have said similar things. I think how I should pursue this now is to:

1. Give him a little time to turn things around. Be perfectly clear about the expectations and keep asking him about his progress.

2. If he still doesn't seem motivated, try to convince him that it's better if we separate. Draw up a letter of separation and get him to sign it.

3. If he refuses to do that, try a buyout as dsr_ suggested.

4. Worst case, offer some small stake.

I'm really hopeful (1) happens but this gives me a plan to try and resolve this quickly if it doesn't. Grateful for everyone's advise here!