Common logo in various app icons

[Paterick]

I have noticed lately that there are quite a few apps in the market that have the same logo in the icon. The logo is like is sideways blue and white figure 8. It can be seen in the icons for Impossible Level Game, Klondike, Smiley Blaster, etc.. I found these just by looking through appbrain. What does it mean when an icon has that logo?
Thanks.

 

[prdstm0nke]

it means those games support Scoreloop to compare your high score globally.