Interesting. You can treat a string as an array to access individual characters, but if the string is already a member of an array? Double brackets.

And since individual characters are strings themselves, you can A$[0][0][0][0] ad infinitum!

what does line 5 do then? print an 'H'?

yeah, just an 'H'

It's a shame this thing doesn't have internet. I'd like to see a podcast thingy done in smilebasic, or a webserver or whatever...

I wrote a permutation code based on this info. Thanks, Ed!