TreeSheets (Cross-Platform Data Organizer) Now Open Source 29
Aardappel writes "TreeSheets has been available as freeware for Windows / Linux / OS X since 2008, but is now also Open Source (ZLIB license). TreeSheets is a cross between a spreadsheet (you can create grids) and an outliner (you can create grids inside grids) allowing you to create almost any structure to organize your data in."
I was feeling guilty (Score:2, Interesting)
This is wonderful news. I was feeling guilty about using this awesome tool, since I try to only use free/open software. But I haven't found anything like it; allowing you to add a whole grid within any grid box means you can keep as much detail as you want within any item (I use it for tasks in a can-ban structure).