New Google Query Suggestions Layout

It seems that everyday when you do a search in Google there is a change in look, layout or even the type of results you get.

The latest 'layout' change we have noticed is in the 'Query Suggestions'. This is the drop down box that appears when you start to type words into the Google search box.

What's changed?

Well as of today all suggestions are now bold

Also there are Google Search and I'm Feeling Lucky tabs at the bottom.

Not sure of the significance of these changes but no doubt as the day continues we will see more feedback.