Sorry it's not so well documented, but it is possible, if a bit rough.
> 1. Is it possible to write a Hecl application on a PC, and download
> and run that application on my BlackBerry Torch?
Yes. I've run Hecl on a BB before, so I know it's possible.
> 2. Is it possible to install an interactive Hecl interpreter on my
> BlackBerry Torch?
Yes again.
> 3. Is it possible to set up Hecl on my BlackBerry Torch so that I can
> load, save and run Hecl programs on the BlackBerry?
Yes. You'll have to dig some, but it's possible - I think there are
some examples of just that in the example.
Unfortunately I can't give you a great deal of assistance, because the
blackberry toolchain is very Windows heavy, I don't have a current
Windows install, and I'm pretty busy in any case... Do send messages
though if anything comes up, and I'll do my best.
--
David N. Welton