What does this symbol on my iPhone mean?

[skillmachine]

Sometimes a blue circle appears where the edge/3G/wifi symbols appear. What does it mean?
Picture:
http://n9i0fw.bay.livefilestore.com/y1p9soE-Y98xlZFwYaO-Afhvks-Pw9kq443_HwWvxa0Fj9ipnbrs4B6VGCN0SLScFAxIcZthJ1cmwTOTXy0y86p1A/photo.jpg

 

[Lauren1]

It is simply a trademark of the company.


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