HTML5 contenteditable table

 ABCDEFGHIJ
1          
2          
3          
4          
5          
6          
7          
8          
9          
10          

After seeing this demo, thought I'd try out contenteditable for table manipulation.

Pros: Effortless editing of cells, keyboard navigation with arrow keys, buttons to add and remove rows and columns.

Cons: Adding rows and columns breaks th usage. Copying and pasting multiple cells creates a sub-table in the cell where you paste it.

Really impressive - it offers a lot of functionality just by setting one property, but I'm looking for more robust manipulation, mimicking that of Excel, so I'm not sure it'll work for me. Plus I need to support IE7. =P