I don’t know whether it is a late news or not but Google is displaying site-links differently. Previously it used to display just links where are now it is displaying a huge list with desciption and links. It is occupying almost half of the page. But I dont know why my sitelinks are looking normal and the sitelinks are decreaded to 4 previously I have 8 site links. May be it is varying or some other factor or may be it is giving for 8+ links.
Any ways this new look is awesome may be Google is experimenting this. Have a look at site links of my friend site aptitude.com
May be google is giving for sites who has more than 8+ links. any idea ?
Update 17-08-2011 : Google is testing sitelinks like this, they reverted back.
Update 18-08-2011: Worked for me even with anewtab