Both brilliant products by ingenious people.
Imagine TreeSheets-like organization of TiddlyWiki things!
Imagine TiddlySheets.
TiddlySheets is my (Charlie Veniot) personal project to mimick the functionality / behaviour / philosophy of TreeSheets, within the practical, in "TiddlySheet" tiddlers. A way to organize / view / maintain a set of tiddlers (including other TiddlySheet tiddlers) in one tiddler that looks like TreeSheets.
This will be a "closed source" effort with regular updates on progress. I will be tracking my time and effort. The end product (or the as-is product at any time) may be publicly released as a sponsored gift to the community if and when anybody (personally, via crowd-funding, or whatever other means) compensates me (at my consulting rates) for the time I've logged creating TiddlySheets (the product and development artifacts like analysis and design notes.)
Something like that. I am always mulling it, like all things, over.
Alternatively, this may light a fire that inspires somebody else to create the same kind of thing for the community at no cost or lower cost. Regardless, I hope the end result will be, eventually, something for the TiddlyWiki community that is, to me, ridiculously cool.
Well, if this has already been done, then this project may come to a screaching halt if I find no reason to continue with it.