It's a XPages - Custom Control that provides an alternative way of displaying information to end users using the jQuery Grid Plugin - jqGrid (see below for more information).
It uses JSON (could be XML or Arrays, but, I’ll focus on JSON for now) as data source which can be easily generated from
Notes views, REST Services from Extension Library, XAgents (SSJS), etc.
xGrid UI is provided by Redmond theme from jQuery UI; however you can download another UI theme from 24 available
at May 2012 or build your own from http://jqueryui.com/themeroller/#themeGallery
By using Custom Properties you can:
Define grid layout
Manage paging options
Allow Inline search (no Full Text Index required)
Provide Custom Search (no Full Text Index required)
Change columns order
Hide and show columns
Add Grouping on the fly (Categorized)
Open selected documents
Check xGrid.pdf for more information and xGrid.nsf for working examples.
* xGrid.nsf has no View indexes to reduce file size. Open it first on Notes client then open Contacts and People views to recreate indexes.