• Checkboxes and Radio items can now have multi-column layouts

There are now 2 more additional options for check boxes and radio buttons, Width and Container Width

If assigned a value, items with Width will have a fixed size and float to the left of each other. Container Width limits on how many items can be on a row e.g. items with '150px' width can have three on a row inside a '450px' container width.

You can use any kind of units for the widths including px, % and em

Download at http://wordpress.org/extend/plugins/fields