OmniGrid is open source, fully adoptable and has been tested on Firefox 3, Chrome, IE 6 and 7. You can easily customize the look through feel through a separate CSS file. OmniGrid is well documented and its API consist of several methods and events for easy integration with your applications.
Developed by Allan Marko Šantić, Omnisdata Ltd; Omnigrid – Advanced DataGrid for Mootools is licensed under a Creative Commons Attribution 3.0 Unported License. You can find further information, demo & download on OmniGrid Website.