3rd party software for P800

HELP!
My Psion 5mx touch screen has died. Luckily the keyboard still works
but things are getting scary.

What I'm specifically looking for is any 3rd party software that
caters for the following:

1. I want to be able to WRITE/SAVE/EDIT documents on the P800 with
embedded spreadsheets (Create timesheets and invoices)
2. I want Multiple to-do lists (currently P800 does this) with
recurring to-dos (P800 does not do this)

Is there any 3rd party software that anyone knows of that does these
things? I don't want to go Pocket PC but I might have to.

Thanks eagerly,
PAM.